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2.3
Test Description: Work in an Electrical System
Instructions: Answer all questions to get your test result.
1) What are the units for electrical work?
A
coulomb
B
amp
C
joule
D
volt
2) The rate of movement of electrical charge is what?
A
work
B
efficiency
C
current
D
voltage
3) In electrical work, the forcelike quantity is what
A
the voltage difference
B
the product of current and time
C
the pressure difference
D
measured in joules
4) The couomb is a unit of electrical charge that's equal to
A
one ampere/second
B
4 joules
C
6.25 times 10 to the eighteenth electrons
D
one ampere
5) The equation for electrical work is voltage times what?
A
energy
B
charge
C
current
D
volume
6) The equation for current is charge divided by what?
A
time
B
work
C
voltage
D
energy
7) A force does work on an object only when
A
it produces heat
B
it stays stationary
C
it moves or changes
D
it produces sound
8) What are the units on voltage difference
A
volts
B
electrons
C
coulombs
D
amps
9) Some electrical work is always lost due to
A
resistance
B
sound
C
light
D
poor operation
10) What are the units on time
A
seconds
B
days
C
hours
D
minutes
*select an answer for all questions
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