10.
a) Name the instrument used to measure the potential difference.
b) Mention the factor that maintains the flow of charge through a conductor.
c) A current of 200 mA flows for 120 s. How much charge has passed?
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Answer:
a) voltmeter
b) potential difference
c)I=Q/t
Q=It
=200×10^-3×120
=24000×10^-3 C
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