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PHYSICS

JAMB 2020 - Question 38

Physics 2020 JAMB Past Questions - Question 38: in a series R-L-C circuit at resonance, the voltages across the resistor and the inductor are 30 V and 40 V respectively. what is the voltage across the capacitor?

Choose the correct answers from the options given.

in a series R-L-C circuit at resonance, the voltages across the resistor and the inductor are 30 V and 40 V respectively. what is the voltage across the capacitor?

A: 30V

B: 40V

C: 50V

D: 70V

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Correct Answer

Explanation

At resonance ; Vc = Vl and Xc = Xl i.e Vc = 40 V