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JEE Main20248 Apr 2024Morning ShiftPhysicsAlternating CurrentActual

An LCR circuit is at resonance for a capacitor C , inductance L and resistance R . Now the value of resistance is halved keeping all other parameters same. The current amplitude at resonance will be now:

Options

  1. AZero
  2. Bsame
  3. Chalved
  4. Ddouble

Correct answer

D. double

Step-by-step solution

In resonance Z=R aligned & I = V R & R halved & I 2 I aligned I becomes doubled.

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