MATH

MATH
78問 • 2年前
  • John Cerda
  • 通報

    問題一覧

  • 1

    A scalar quantity has

    Magnitude

  • 2

    Del Operator is

    same as gradient operator and vector differential operator

  • 3

    Divergence of vector field is not outward flux of a vector per unit

    volume

  • 4

    In the cyclindrical coordinate system, φ ranges from

    0 to less than 2π

  • 5

    The function F(x) = [x] denotes the greatest integer function, is continuous at

    1.5

  • 6

    f(x) = [f(x) - f(x - h)]/h is called

    Backward Difference Quotient

  • 7

    The following differential equation is known as x(1 - x)y'' + [c - (1 + a + 1)x]y' - aby = 0

    Hypergeometric Differential Equation

  • 8

    At the point of discontinuity ____ component of magnetic flux density is continuous

    Normal

  • 9

    In a cartesian coordinate system, axes x, y, and z are at ____ to each other.

    90 degrees

  • 10

    Divergence at a point is positive if field lines are ____

    Diverging

  • 11

    A differential equation is considered to be ordinary if it has

    one independent variable

  • 12

    Suppose the potential function is a step function. The equation that gets satisfied is

    Laplace Equation

  • 13

    The cross product of same vector is

    Zero

  • 14

    Multiplication of two vectors is

    Either vector or scalar

  • 15

    Divergence Theorem relates _____ integral to _____ integral

    Surface, Volume

  • 16

    Spherical Coordinate System is _____

    Right handed system

  • 17

    Spherical coordinates are represented in terms of

    r, θ, φ

  • 18

    If Laplace equation satisfies, then which of the following statement is true?

    Current will be infinite

  • 19

    According to this law, the induced current acts to produce an opposing flux.

    Lenz' Law

  • 20

    Gradient can be replaced by

    Differential Equation

  • 21

    A toroid is ___ selenoid

    a long

  • 22

    In the cylindrical coordinate system, z ranges from

    - ∞ to + ∞

  • 23

    Laplacian Operator ____

    can be a scalar or vector function

  • 24

    Given f a continuous function on interval (a, b) such that f(a) is not equal to f(b). The concept that states that for every number c between a and b such that f(x) = c is known as

    Intermediate Value Theorem

  • 25

    A unit vector has ___ direction to that of the main vector

    same

  • 26

    Laplacian of a scalar is ___

    scalar

  • 27

    What do you call a method of finding zeros of f(x) in numerical analysis wherein the following formula is utilized, X = Xo - f(Xo)/f'(Xo)

    Newton-Raphson Method

  • 28

    In a spherical coordinate system, φ is __

    Azimuthal angle

  • 29

    ____ of two vectors uses the Law of Parallelogram

    Addition

  • 30

    ____ product is governed by the Right Hand rule.

    Vector

  • 31

    Cylindrical Coordinates are represented in terms of _____

    r, φ, z

  • 32

    The following differential equation is known as: x²y'' + xy' + (x² - n²)y = 0

    Bessel Differential Equation

  • 33

    A vector quantity has

    magnitude and direction

  • 34

    In free space, Poisson Equation becomes

    Laplace Equation

  • 35

    Cylindrical coordinate 'z' is related to the Cartesian coordinate as

    z

  • 36

    In a spherical coordinate system, φ is given as

    tan^-1 (y/x)

  • 37

    f(x) = [f(x+h) - f(x - h)]/2h is called

    Centered Difference Quotient

  • 38

    If a researcher uses an alpha level of 0.05 in an ANOVA test, they are essentially saying that they are willing to accept 5% chance of making

    Type I Error

  • 39

    Consider the ANOVA Table below. Compute the MSE, Mean Square of Error.

    1.454

  • 40

    Divergence of a vector at a point in a vector field is ___ quantity.

    Scalar

  • 41

    Laplace equation is what type of Partial Differential Equation?

    Elliptic

  • 42

    "r" in Cylindrical coordinates corresponding to Cartesian coordinates (3, 4, 5) is

    5

  • 43

    For transformation from the Cartesian coordinate system to Spherical coordinate system, ap should be equal to

    cos θ

  • 44

    Which of the following is/are scalar quantity?

    Displacement

  • 45

    Divergence Theorem is applicable for a ____ that is bounded by a ____

    Volume, Surface

  • 46

    Cylindrical coordinate "r" is related to the Cartesian coordinate as

    √(x² + y²)

  • 47

    Divergence of a gradient of a vector function is

    Laplacian operation

  • 48

    If two vectors are orthogonal, then their scalar product is ___

    zero

  • 49

    Which of the following is/are vector quantity

    All of the above

  • 50

    It relates a line integral around a simple closed curve C to a double integral over plane region D bounded by C

    Green's Theorem

  • 51

    Metal have their conductivity

    > 1

  • 52

    The following differential equation is known as: xy'' + (1 - x)y' + λy = 0

    Laguerre Differential Equation

  • 53

    A scalar field is harmonic in a given region, its Laplacian is

    0

  • 54

    Find the fourier transform of cos (nt)

    π δ(ω + n) + π δ(ω - n)

  • 55

    Line integral of an electric field around a closed loop is

    Zero

  • 56

    Which is the following is true about Type II Error?

    Nonrejection of the null hypothesis when it is false

  • 57

    Maxwell's equations in ____ form give information at point of discontinuity in electromagnetic fields.

    Integral

  • 58

    A unit vector has its magnitude as

    1

  • 59

    In terms of Spherical coordinate system, variables y of Cartesian coordinate system is given as

    r sin θ sin φ

  • 60

    Stoke's Theorem relates _____ integral to ___ integral

    Line, Surface

  • 61

    If z = e^(jθ), what is the real part of z^n + 1/z^n

    2 cos (nθ)

  • 62

    What type of partial differential equation is the wave equation?

    Hyperbolic

  • 63

    Fo the function f(x, y, z) = xy - x²z + y²z. Which of the following is false?

    It has one independent variable

  • 64

    Vector product obeys ____ law

    Distributive

  • 65

    Laplacian of a given vector is ___ of gradient of its given divergence and its curl of curl

    difference

  • 66

    Curl of gradient of a vector is

    Null Vector

  • 67

    On the basis of magnetic behavior, materials are classified into ____ categories

    5

  • 68

    A harmonic function is defined as function which:

    Laplacian is zero

  • 69

    In cylindrical coordinate system, unit vector is

    directed outwards radially and normal to cylindrical surface at a point

  • 70

    If the rate at which field lines enter into a small volume and also leave then divergence is ____

    0

  • 71

    Which of the following is true about Type I Error?

    Rejection of the null hypothesis when it is true

  • 72

    Curl of electrostatic field is

    0

  • 73

    Gradient represents the ____ of maximum space rate of increase of a scalar field

    magnitude and direction

  • 74

    Insulators have their conductivity

    < 1

  • 75

    Permeability of vacuum is given as ____

    4 x 10^-7 H/m

  • 76

    Which of the following theorem relates a surface integral to a volume Integral.

    Gauss' Divergence Theorem

  • 77

    Which of the following is not possible for a given population

    mean is positive and standard deviation is negative

  • 78

    Curl measures

    rate of change of vector and circular motion

  • Basic Communication I

    Basic Communication I

    John Cerda · 100問 · 2年前

    Basic Communication I

    Basic Communication I

    100問 • 2年前
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    Basic Communication II

    Basic Communication II

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    Basic Communication II

    Basic Communication II

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    Basic Communication III

    Basic Communication III

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    Basic Communication III

    Basic Communication III

    50問 • 2年前
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    Amplitude Modulation I

    Amplitude Modulation I

    John Cerda · 100問 · 2年前

    Amplitude Modulation I

    Amplitude Modulation I

    100問 • 2年前
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    Amplitude Modulation II

    Amplitude Modulation II

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    Amplitude Modulation II

    Amplitude Modulation II

    100問 • 2年前
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    Angle Modulation I

    Angle Modulation I

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    Angle Modulation I

    Angle Modulation I

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    Angle Modulation II

    Angle Modulation II

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    Angle Modulation II

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    58問 • 2年前
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    Transmission Line I

    Transmission Line I

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    Transmission Line I

    Transmission Line I

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    Transmission Line II

    Transmission Line II

    John Cerda · 37問 · 2年前

    Transmission Line II

    Transmission Line II

    37問 • 2年前
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    Differential Calculus

    Differential Calculus

    John Cerda · 84問 · 2年前

    Differential Calculus

    Differential Calculus

    84問 • 2年前
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    Integral Calculus

    Integral Calculus

    John Cerda · 53問 · 2年前

    Integral Calculus

    Integral Calculus

    53問 • 2年前
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    DC Circuit

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    John Cerda · 63問 · 2年前

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    63問 • 2年前
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    Differential Equation

    Differential Equation

    John Cerda · 21問 · 2年前

    Differential Equation

    Differential Equation

    21問 • 2年前
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    ELEX 2

    ELEX 2

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    ELEX 2

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    ELEX 3

    ELEX 3

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    ELEX 3

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    ELEX 4

    ELEX 4

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    ELEX 4

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    ELEX 5

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    ELEX 5

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    問題一覧

  • 1

    A scalar quantity has

    Magnitude

  • 2

    Del Operator is

    same as gradient operator and vector differential operator

  • 3

    Divergence of vector field is not outward flux of a vector per unit

    volume

  • 4

    In the cyclindrical coordinate system, φ ranges from

    0 to less than 2π

  • 5

    The function F(x) = [x] denotes the greatest integer function, is continuous at

    1.5

  • 6

    f(x) = [f(x) - f(x - h)]/h is called

    Backward Difference Quotient

  • 7

    The following differential equation is known as x(1 - x)y'' + [c - (1 + a + 1)x]y' - aby = 0

    Hypergeometric Differential Equation

  • 8

    At the point of discontinuity ____ component of magnetic flux density is continuous

    Normal

  • 9

    In a cartesian coordinate system, axes x, y, and z are at ____ to each other.

    90 degrees

  • 10

    Divergence at a point is positive if field lines are ____

    Diverging

  • 11

    A differential equation is considered to be ordinary if it has

    one independent variable

  • 12

    Suppose the potential function is a step function. The equation that gets satisfied is

    Laplace Equation

  • 13

    The cross product of same vector is

    Zero

  • 14

    Multiplication of two vectors is

    Either vector or scalar

  • 15

    Divergence Theorem relates _____ integral to _____ integral

    Surface, Volume

  • 16

    Spherical Coordinate System is _____

    Right handed system

  • 17

    Spherical coordinates are represented in terms of

    r, θ, φ

  • 18

    If Laplace equation satisfies, then which of the following statement is true?

    Current will be infinite

  • 19

    According to this law, the induced current acts to produce an opposing flux.

    Lenz' Law

  • 20

    Gradient can be replaced by

    Differential Equation

  • 21

    A toroid is ___ selenoid

    a long

  • 22

    In the cylindrical coordinate system, z ranges from

    - ∞ to + ∞

  • 23

    Laplacian Operator ____

    can be a scalar or vector function

  • 24

    Given f a continuous function on interval (a, b) such that f(a) is not equal to f(b). The concept that states that for every number c between a and b such that f(x) = c is known as

    Intermediate Value Theorem

  • 25

    A unit vector has ___ direction to that of the main vector

    same

  • 26

    Laplacian of a scalar is ___

    scalar

  • 27

    What do you call a method of finding zeros of f(x) in numerical analysis wherein the following formula is utilized, X = Xo - f(Xo)/f'(Xo)

    Newton-Raphson Method

  • 28

    In a spherical coordinate system, φ is __

    Azimuthal angle

  • 29

    ____ of two vectors uses the Law of Parallelogram

    Addition

  • 30

    ____ product is governed by the Right Hand rule.

    Vector

  • 31

    Cylindrical Coordinates are represented in terms of _____

    r, φ, z

  • 32

    The following differential equation is known as: x²y'' + xy' + (x² - n²)y = 0

    Bessel Differential Equation

  • 33

    A vector quantity has

    magnitude and direction

  • 34

    In free space, Poisson Equation becomes

    Laplace Equation

  • 35

    Cylindrical coordinate 'z' is related to the Cartesian coordinate as

    z

  • 36

    In a spherical coordinate system, φ is given as

    tan^-1 (y/x)

  • 37

    f(x) = [f(x+h) - f(x - h)]/2h is called

    Centered Difference Quotient

  • 38

    If a researcher uses an alpha level of 0.05 in an ANOVA test, they are essentially saying that they are willing to accept 5% chance of making

    Type I Error

  • 39

    Consider the ANOVA Table below. Compute the MSE, Mean Square of Error.

    1.454

  • 40

    Divergence of a vector at a point in a vector field is ___ quantity.

    Scalar

  • 41

    Laplace equation is what type of Partial Differential Equation?

    Elliptic

  • 42

    "r" in Cylindrical coordinates corresponding to Cartesian coordinates (3, 4, 5) is

    5

  • 43

    For transformation from the Cartesian coordinate system to Spherical coordinate system, ap should be equal to

    cos θ

  • 44

    Which of the following is/are scalar quantity?

    Displacement

  • 45

    Divergence Theorem is applicable for a ____ that is bounded by a ____

    Volume, Surface

  • 46

    Cylindrical coordinate "r" is related to the Cartesian coordinate as

    √(x² + y²)

  • 47

    Divergence of a gradient of a vector function is

    Laplacian operation

  • 48

    If two vectors are orthogonal, then their scalar product is ___

    zero

  • 49

    Which of the following is/are vector quantity

    All of the above

  • 50

    It relates a line integral around a simple closed curve C to a double integral over plane region D bounded by C

    Green's Theorem

  • 51

    Metal have their conductivity

    > 1

  • 52

    The following differential equation is known as: xy'' + (1 - x)y' + λy = 0

    Laguerre Differential Equation

  • 53

    A scalar field is harmonic in a given region, its Laplacian is

    0

  • 54

    Find the fourier transform of cos (nt)

    π δ(ω + n) + π δ(ω - n)

  • 55

    Line integral of an electric field around a closed loop is

    Zero

  • 56

    Which is the following is true about Type II Error?

    Nonrejection of the null hypothesis when it is false

  • 57

    Maxwell's equations in ____ form give information at point of discontinuity in electromagnetic fields.

    Integral

  • 58

    A unit vector has its magnitude as

    1

  • 59

    In terms of Spherical coordinate system, variables y of Cartesian coordinate system is given as

    r sin θ sin φ

  • 60

    Stoke's Theorem relates _____ integral to ___ integral

    Line, Surface

  • 61

    If z = e^(jθ), what is the real part of z^n + 1/z^n

    2 cos (nθ)

  • 62

    What type of partial differential equation is the wave equation?

    Hyperbolic

  • 63

    Fo the function f(x, y, z) = xy - x²z + y²z. Which of the following is false?

    It has one independent variable

  • 64

    Vector product obeys ____ law

    Distributive

  • 65

    Laplacian of a given vector is ___ of gradient of its given divergence and its curl of curl

    difference

  • 66

    Curl of gradient of a vector is

    Null Vector

  • 67

    On the basis of magnetic behavior, materials are classified into ____ categories

    5

  • 68

    A harmonic function is defined as function which:

    Laplacian is zero

  • 69

    In cylindrical coordinate system, unit vector is

    directed outwards radially and normal to cylindrical surface at a point

  • 70

    If the rate at which field lines enter into a small volume and also leave then divergence is ____

    0

  • 71

    Which of the following is true about Type I Error?

    Rejection of the null hypothesis when it is true

  • 72

    Curl of electrostatic field is

    0

  • 73

    Gradient represents the ____ of maximum space rate of increase of a scalar field

    magnitude and direction

  • 74

    Insulators have their conductivity

    < 1

  • 75

    Permeability of vacuum is given as ____

    4 x 10^-7 H/m

  • 76

    Which of the following theorem relates a surface integral to a volume Integral.

    Gauss' Divergence Theorem

  • 77

    Which of the following is not possible for a given population

    mean is positive and standard deviation is negative

  • 78

    Curl measures

    rate of change of vector and circular motion