MEDIUM
JEE Main/Advance
IMPORTANT
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Power factor of the circuit shown here is

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Important Questions on Alternating Current

EASY
JEE Main/Advance
IMPORTANT
For which set of values of XL, XC and R, a series LCR circuit will be in resonance?
HARD
JEE Main/Advance
IMPORTANT

Find average power loss in the following RLC circuit.

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MEDIUM
JEE Main/Advance
IMPORTANT
Consider an ac circuit where an incandescent light bulb is in series with an inductor. If the frequency of the generator is increased, what will happen to the brightness of bulb?
MEDIUM
JEE Main/Advance
IMPORTANT
In series LCR AC circuit, the voltage of the source at any instant is equal to
MEDIUM
JEE Main/Advance
IMPORTANT
For a LCR series circuit with an A.C. source of angular frequency ω:
MEDIUM
JEE Main/Advance
IMPORTANT

Switch is in position A for a long time. At time 0, it is switched to position B. Find time period of resulting charge oscillation.

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MEDIUM
JEE Main/Advance
IMPORTANT

Switch is in position A for a long time. At time 0, it is switched to position B. Find the maximum charge which will accumulate on capacitor.

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MEDIUM
JEE Main/Advance
IMPORTANT

Two capacitor with initial charges CV0 and 2CV0 as shown in figure are connected across an inductor of inductance L. Find time period of oscillation and maximum current through the circuit

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