Physics · 2015
JEE Main · 11 April 2015, Shift 1 · Q22
For the LCR circuit, shown here, the current is observed to lead the applied voltage. An additional capacitor C', when joined with the capacitor C…
For the LCR circuit, shown here, the current is observed to lead the applied voltage. An additional capacitor C', when joined with the capacitor C present in the circuit, makes the power factor of the circuit unity. The capacitor C', must have been connected in :
Official answer
(4)
parallel with C and has a magnitude $\displaystyle \frac{1-\omega^2 L C}{\omega^2 L}$.
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JEE Main 2015 Physics question, with the answer from NTA’s final answer key. Where our answers come from.