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A series LCR circuit with R=20Omega,L=1.5H,andC=35muF is connected to a variable frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle? |
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Answer» Solution :`Z = sqrt(R^(2) + (X_(L) - X_(C))^(2))` At RESONANCE `X_(L) - X_(C) = 0` `:. Z = R` `I = (V)/(Z) = 10` `P = VI = 200 W` |
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