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Q. For high frequency, capacitor offers

Rajasthan PMTRajasthan PMT 2007Alternating Current

Solution:

At a higher frequency, the charge on the capacitor plates will vary more rapidly, so $ \left( \frac{dq}{dt} \right) $ will be higher resulting in an increase in the instantaneous current $ \left( i=\frac{dq}{dt} \right) $ .
This means lower capacitive reactance $ ie $ , less resistance.