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Which of the following is NOT an insulator?
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a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
A device that is made of several cells and produces an electric current by converting chemical energy into electrical energy is called?
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
There are 4 light bulbs in a parallel circuit, you add 5 more what will happen to the brightness?
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
_____is used in homes because it is more practical for transferring electrical energy.
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
A difference in charge between two electrodes in a cell causes a_____between the electrodes.
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
A device used to protect buildings from electrical fires is a(n)
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
A device that uses electrical energy to do work is called a...?
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
Objects that are in contact with the Earth are
load
a battery
The brightness would not change
circuit breaker
potential difference
water
grounded
Alternating current
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