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