Alternating CurrentHard

Question

In the series LCR circuit as shown in figure, the voltmeter and ammeter readings are :

Options

A.V = 100 volt, I = 2 amp

B.V = 100 volt, I = 5 amp

C.V = 1000 volt, I = 2 amp

D.V = 300 volt, I = 1 amp

Solution

At resonance (V_C = V_L)
     V = I_rms × R
= × R       (here z = R)
V = V_rms = 100 volt    &    I_rms = = 2 Amp.

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