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