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Question: Answered & Verified by Expert
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
PhysicsAlternating CurrentMHT CETMHT CET 2023 (09 May Shift 2)
Options:
  • A current is maximum when $\omega^2=\frac{1}{\text { LC }}$
  • B current is zero
  • C voltage is minimum when $\omega^2=\frac{1}{\text { LC }}$
  • D voltage is maximum when $\omega^2=\frac{1}{\text { LC }}$
Solution:
1879 Upvotes Verified Answer
The correct answer is: voltage is maximum when $\omega^2=\frac{1}{\text { LC }}$
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.

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