Q14 of 31 Page 252

Silver is a better conductor of electricity that copper. Why do we use copper wire for conduction of electricity?

Though silver is the best conductor of electricity it is very expensive so we use copper wire for conduction of electricity. Copper is also more readily available and cheaper, affordable as compared to silver so we use copper wire instead of silver wires for conduction of electricity.


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Deduce the expression for the equivalent resistance of three resistors connected in series.

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Deduce the expression for the equivalent resistance of three resistors connected in parallel.

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