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Most Important Selected Qs for JEE AdvancedPhysicsAlternating Current

An LCR series circuit with 100 resistance is connected to an AC source of 200 V and angular frequency 300 rad / s . When only capacitance is removed, the current lags behind the voltage by 60^ . When only the inductance is removed the current leads the voltage by 60^ . Calculate the power dissipated in watt in the LCR circuit.

Correct answer

400

Step-by-step solution

From the given data L= 1 C . Thus power factor is zero Power dissipated = V^2 R =400 ~W

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