An alternating voltage of frequency ' $\omega$ ' is induced in electric circuit consisting of an inductance…

An alternating voltage of frequency ' $\omega$ ' is induced in electric circuit consisting of an inductance ' $\mathrm{L}$ ' and capacitance ' $\mathrm{C}$ ', connected in parallel. Then across the inductance coil
  1. current is maximum when $\omega^2=\frac{1}{\text { LC }}$
  2. current is zero
  3. voltage is minimum when $\omega^2=\frac{1}{\text { LC }}$
  4. voltage is maximum when $\omega^2=\frac{1}{\text { LC }}$

Solution

In a parallel LC circuit at $\omega^2=\frac{1}{\mathrm{LC}}$, the current is minimum. As current and voltage are out of phase by $90^{\circ}$, the voltage would be maximum. .

Asked in: MHT CET 2023 (09 May Shift 2)

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