Physics, asked by flowers6413, 1 year ago

In series combination of R, L and C with an A.C. source at resonance, if R = 20 ohm, then impedence Z of the combination is(a) 20 ohm(b) zero(c) 10 ohm(d) 400 ohm

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Answered by Anonymous

0

at resonance, xl=xc
so,z=R
so,z=20 ohm

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