# NEET Physics Alternating Current Questions Solved

In a series LCR circuit connected to an a.c. source of voltage $\mathrm{v}={\mathrm{v}}_{\mathrm{m}}\mathrm{sin\omega t}$, use phasor diagram to derive an expression for the current in the circuit . Hence obtain the expression for the power dissipated in the circuit. Show that power dissipated at resonance is maximum.

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