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Series LCR with R = 11.5 ohm and L = 2.5 H on 230 V, 50 Hz: capacitance and maximum current

The same question, asked 2 times: 20 Apr 2025 S2, 22 Apr 2025 S1. Every wording below, oldest first.

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  1. Question 1

    20 Apr 2025 S2

    15
    An a.c. e.m.f. of peak value =230 V= 230\text{ }V and frequency 50 Hz is connected to a circuit with R=11.5Ω, L=2.5HR = 11.5\Omega,\text{ }L = 2.5H and a capacitor all in series. The value of capacitance is ' CC ' for the current in the circuit to be maximum. The value of C and maximum current are respectively ( π2=10\pi^{2}= 10 ).

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  2. Question 2

    22 Apr 2025 S1

    40
    An a.c. e.m.f. of peak value 230 V and frequency 50 Hz is connected to a circuit with R=11.5Ω, L=2.5HR = 11.5\Omega,\text{ }L = 2.5H and a capacitor all in series. The value of capacitance is ' CC ' for the current in the circuit to be maximum. The value of ' CC ' and maximum current are respectively ( π2=10\pi^{2}= 10 )

    Tap an option to check your answer.