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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
joule
B
coulomb
C
volt
D
amp
2) The rate of movement of electrical charge is what?
A
current
B
efficiency
C
voltage
D
work
3) In electrical work, the forcelike quantity is what
A
the voltage difference
B
the pressure difference
C
measured in joules
D
the product of current and time
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
charge
B
current
C
energy
D
volume
6) The equation for current is charge divided by what?
A
time
B
work
C
energy
D
voltage
7) A force does work on an object only when
A
it moves or changes
B
it stays stationary
C
it produces sound
D
it produces heat
8) What are the units on voltage difference
A
coulombs
B
volts
C
electrons
D
amps
9) Some electrical work is always lost due to
A
sound
B
poor operation
C
resistance
D
light
10) What are the units on time
A
hours
B
seconds
C
minutes
D
days
*select an answer for all questions
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