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  4. A circuit element is connected to an alternating voltage supply of variable frequency. When the frequency is increased, current in the circuit is found to remain same. The circuit element is

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Q. A circuit element is connected to an alternating voltage supply of variable frequency. When the frequency is increased, current in the circuit is found to remain same. The circuit element is

COMEDKCOMEDK 2011Alternating Current

Solution:

Resistance of a resistor does not depend on the frequency of ac source. So the resistance of the circuit remains same, and current will be same as it depends on the amplitude of ac source only.