Electro Magnetic Induction And Alternating Currents Question 179

Question: In the circuit shown, the symbols have their usual meanings. The cell has emf E. X is initially joined to V for a long time. Then, disjoined to Z The maximum charge on C at any later time will be

Options:

A) ERLC

B) ER2LC

C) ELC2R

D) ELCR

Show Answer

Answer:

Correct Answer: D

Solution:

  • Current in inductor =ER
    its energy =12LE2R2 Same energy is later stored in capacitor Q22C=12LE2R2Q=LCER


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