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33問 • 1年前
  • Guevara Official
    • 通報

    問題一覧

  • 1

     The atom that gives up some of its electrons is

    a positive ion

  • 2

    The fundamental negative charge is the

    electron

  • 3

    An electron is a particle which:

    orbit the nucleus of an atom.

  • 4

    Elements whose atoms have fewer than 4 electrons in their valency shell are:

    good conductor

  • 5

    The atomic number of an element is dependent upon the:

    number of electrons)

  • 6

    The 1st shell (K) has a maximum of

    2 electrons

  • 7

    The 4th shell (N) has a maximum of

    32 electrons

  • 8

    Electron arrangement of potassium which has 19 electrons is:

    2.8.8.1

  • 9

    : .............. Charged bodies attract or repel each other with a force that is directly proportional to the product of their individual charges, and is inversely proportional to the square of the distance between them.

    Coulomb's Law states that

  • 10

    A vacuum is a medium :

    that allow electricity to flow unimpeded

  • 11

    The type of medium that is the best electrical conductor is :

    vacuum

  • 12

    The SI unit of electrical charge is :

    coulomb

  • 13

    An electrolyte liquid is:

    a liquid which can carry an electric current through it

  • 14

    The process used to make some non-conducting liquids conduct electricity is,

    ionization.

  • 15

    Plasma is

    the state of matter where some of the electrons in a gas are stripped or "ionized" from their molecules or atoms.

  • 16

    The field about a charged body is generally represented by lines which are referred to as

    electrostatic lines of force

  • 17

    The field about a charged body is generally represented by lines which are referred to as

    electrostatic lines of force

  • 18

    Energy contained by an electron by virtue of its motion is

    called kinetic energy

  • 19

    The rate of flow of charge (Q)

    is ampere

  • 20

    Therefore Electric current Flow can be said to

    flow from Negative to Positive.

  • 21

    Directed drift means :

    current

  • 22

    This opposition to current flow is known as resistance (R), and the unit of measure is the:

    Ohm.

  • 23

    conductivity is the inverse of :

    resistance

  • 24

    Mobile electrons means:

    free electron

  • 25

    current can be calculated by the formula :

    I = Q / t

  • 26

    piezoelectricity cell produces electricity when subjected to:

    Pressure

  • 27

    What is the production of electricity by pressure commonly known as?

    Piezoelectric effect

  • 28

    Thermocouple is an example of electricity generated by :

    heat

  • 29

    Thermocouples generally can be subjected to:

    much greater temperatures than ordinary thermometers,

  • 30

    On a Photocell the positive potential of the supply source is connected to :

    anode

  • 31

    The 3 conditions required to produce electricity by magnetism are :

    magnetic field, conductor, and relative motion

  • 32

    The difference in potential between the electrodes in wet cell and dry cell depends primarily on the:

    type metals used for the plates.

  • 33

    Microphone is an example of voltage produced

    by pressure

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    問題一覧

  • 1

     The atom that gives up some of its electrons is

    a positive ion

  • 2

    The fundamental negative charge is the

    electron

  • 3

    An electron is a particle which:

    orbit the nucleus of an atom.

  • 4

    Elements whose atoms have fewer than 4 electrons in their valency shell are:

    good conductor

  • 5

    The atomic number of an element is dependent upon the:

    number of electrons)

  • 6

    The 1st shell (K) has a maximum of

    2 electrons

  • 7

    The 4th shell (N) has a maximum of

    32 electrons

  • 8

    Electron arrangement of potassium which has 19 electrons is:

    2.8.8.1

  • 9

    : .............. Charged bodies attract or repel each other with a force that is directly proportional to the product of their individual charges, and is inversely proportional to the square of the distance between them.

    Coulomb's Law states that

  • 10

    A vacuum is a medium :

    that allow electricity to flow unimpeded

  • 11

    The type of medium that is the best electrical conductor is :

    vacuum

  • 12

    The SI unit of electrical charge is :

    coulomb

  • 13

    An electrolyte liquid is:

    a liquid which can carry an electric current through it

  • 14

    The process used to make some non-conducting liquids conduct electricity is,

    ionization.

  • 15

    Plasma is

    the state of matter where some of the electrons in a gas are stripped or "ionized" from their molecules or atoms.

  • 16

    The field about a charged body is generally represented by lines which are referred to as

    electrostatic lines of force

  • 17

    The field about a charged body is generally represented by lines which are referred to as

    electrostatic lines of force

  • 18

    Energy contained by an electron by virtue of its motion is

    called kinetic energy

  • 19

    The rate of flow of charge (Q)

    is ampere

  • 20

    Therefore Electric current Flow can be said to

    flow from Negative to Positive.

  • 21

    Directed drift means :

    current

  • 22

    This opposition to current flow is known as resistance (R), and the unit of measure is the:

    Ohm.

  • 23

    conductivity is the inverse of :

    resistance

  • 24

    Mobile electrons means:

    free electron

  • 25

    current can be calculated by the formula :

    I = Q / t

  • 26

    piezoelectricity cell produces electricity when subjected to:

    Pressure

  • 27

    What is the production of electricity by pressure commonly known as?

    Piezoelectric effect

  • 28

    Thermocouple is an example of electricity generated by :

    heat

  • 29

    Thermocouples generally can be subjected to:

    much greater temperatures than ordinary thermometers,

  • 30

    On a Photocell the positive potential of the supply source is connected to :

    anode

  • 31

    The 3 conditions required to produce electricity by magnetism are :

    magnetic field, conductor, and relative motion

  • 32

    The difference in potential between the electrodes in wet cell and dry cell depends primarily on the:

    type metals used for the plates.

  • 33

    Microphone is an example of voltage produced

    by pressure