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CBSE - Class 12 Physics Alternating Current Worksheet
A 44 mH inductor is connected to 220 V, 50 Hz ac supply. A 60 mF capacitor is connected to a 110 V, 60 Hz ac supply. what is the net power absorbed by each circuit over a complete cycle. Explain your answer.
Figure 7.17 shows a series LCR circuit connected to a variable frequency $230 V$ source. $L = 5.0 H$, $C = 80\mu F$, $R = 40 \Omega$. (a) Determine the source frequency which drives the circuit in resonance.

Figure 7.17 shows a series LCR circuit connected to a variable frequency $230 V$ source. $L = 5.0 H$, $C = 80\mu F$, $R = 40 \Omega$. (b) Obtain the impedance of the circuit and the amplitude of current at the resonating frequency.

Figure 7.17 shows a series LCR circuit connected to a variable frequency $230 V$ source. $L = 5.0 H$, $C = 80\mu F$, $R = 40 \Omega$. (c) Determine the rms potential drops across the three elements of the circuit. Show that the potential drop across the LC combination is zero at the resonating frequency.

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