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