問題一覧
1
The smallest element that exist?
atoms
2
Is made by one kind of atom
elements
3
When two or more atoms of different elements combined?
compound
4
The smallest element of any compound
molecule
5
Consist of neutron, protons and electrons
atoms
6
Neutron and protons are located the?
nucleus
7
An element consist of
one kind of atoms
8
Electrons have a
negative charge
9
The nucleus of atoms has
protons and neutrons
10
A conductor of electricity is a material that
allows the electrons to move through it
11
Atoms consist 3 still smaller particules
electron, protons and neutrons
12
Of this three particles, the positive side charge is the
proton
13
And the negatively charge particle is the
electron
14
Particle found on the nucleus of the atom are the and the
proton and neutron
15
An atom that has gained a surplus of electrons is said to be
negative charge
16
And if the atom has lost a number of electrons, it is called a
positive charge
17
The electrons found in the outermost orbit of the atoms are known as
valence electrons
18
Most insulation are
compound of two or more elements
19
Voltage is
electrical force
20
Resistance of a conductor is determined by
length, cross-sectional area, temperature and type of material
21
A current is electrical
flow
22
Which of the form of voltage source require polarity markings
direct current
23
Technician should wear static straps when working on any electronic components to prevent discharge of damaging voltage that are produced by
friction
24
The flowing symble is
rheostat
25
The following symble is
motor
26
A break in the normal path of an electron circuit causes a/an:
open circuit
27
Amount of current is determined by
source voltage and resistance of the circuit
28
If an open occurs in a circuit, current is
decrease
29
As applied voltage increases
current increases
30
Voltage is
potential difference
31
Resistance is
determined by circuit construction
32
Amperage is
measurement of current
33
Resistance of a circuit decrease if a/an
short occurs in a series or parallel circuit
34
As resistance of a circuit increases
current increases
35
If a resistor in a circuit is shorted, an ammeter in the circuit would indicate
more current flow
36
In heavy equipments electrical system, a resistor could be
any of the above
37
Reduced current flow in a series circuit can be caused by
corroded