List of top Physics Questions on Alternating current asked in Rajasthan PMT

In a step up transformer the turn ratio is 1 : 10. A resistance of $ 200\,\Omega $ connected across the secondary is drawing a current of 0.5 A. What is the primary voltage and current?

What is the value of inductance L for which the current is a maximum in a series LCR circuit with $ C=10\,\mu F $ and $ \omega =1000\,{{s}^{-1}} $ ?

In an $L-R$ circuit, time constant is that time in which current grows from zero to the value where $ I_{0}$ is steady state current.

For high frequency, capacitor offers

In a step-up transformer ratio of number of turns in primary to seconday coil is $1: 25 .$ If input voltage is $230$ volt and load current is $2 \,amp$, then current in primary is :