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Ch. 1 Electricity
Test Description: Basic components of electricity
Instructions: Answer all questions to get your test result.
1) The space around a particle through which an electric charge can exert force is.
A
A polarized field
B
A resistance field
C
An atomic field
D
An electric field
2) Which of these is a technology that makes use of static charges?
A
A copier machine
B
A clothes dryer
C
Copper wiring
D
An electric outlet
3) Before a flash of lightning, a positive charge builds up on the ground’s surface through
A
Contact charging
B
Induction
C
Conduction
D
insulation
4) An electric charge will move between two positions with different
A
Resistances
B
Potentials
C
Amperages
D
Currents
5) An electric current is a flow of
A
Charge
B
Insulation
C
Conduction
D
Resistance
6) Which of these would have the MOST resistance?
A
A short, thick, copper wire
B
A long, thick, copper wire
C
A long, thin, copper wire
D
A short, thin, copper wire
7) An Ampere is the standard unit of measure for:
A
Electric potential
B
Current
C
Resistance
D
Charge
8) An OHM is the standard unit of measure for:
A
Resistance
B
Current
C
Electric potential
D
Charge
9) A Volt is the standard unit of measure for:
A
Resistance
B
Current
C
Voltage
D
Charge
10) ._________________________is the amount electric potential energy per unit charge at a certain position in an electric field.
A
Amp
B
Electrical potential
C
Ohm
D
volt
11) An electric potential of one___________________________ is equal to one joule of energy per coulomb of charge.
A
charge
B
Volt
C
electrical potential
D
current
12) Which of the following affects resistance?
A
Insulator
B
Battery
C
Temperature
D
Conductor
13) Which of the DOES NOT affect resistance?
A
Type of wire
B
Insulation
C
Length of wire
D
Thickness
14) A current flows from a 6-volt battery through a wire with a resistance of 2 Ohms. Use Ohm’s Law to calculate the amperage.
A
3ohms
B
3A
C
2A
D
2I
15) Use Ohm’s Law to determine the voltage of a battery that sends 3 amps of current through a wire with a resistance of 2 Ohms.
A
5V
B
6A
C
6V
D
12V
16) A storage cell has the capability to do what?
A
sends electrons only out
B
recharge and be used again
C
be used once
17) A primary cell has two types....
A
Wet cell and dry cell
B
storage cell and wet cell
C
wet cell and paste cell
D
dry cell and paste cell
18) In Ohm's triangle which letter goes on top?
A
V
B
R
C
I
19) Steel allows an electric charge to pass through it easily. Steel is a good ___________________________.
A
insulation
B
insulator
C
resistator
D
Conductor
20) . Rubber does not easily allow a charge to pass through it. Rubber is a good. __________________________.
A
conductor
B
insulator
*select an answer for all questions
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