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Question

Electric current flows through:

A
a conductor
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B
an insulator
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C
free space
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D
none of these
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Solution

The correct option is A a conductor
Electric current is defined as the flow of electrons in a conductor because inside a conductor there are plenty of free electrons which start to move when a voltage is applied across the conductor. In this way, an electric current is constituted in a conductor, which is actually rich in free electrons.

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