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Calculate the resonant frequency if the values of the capacitor and inductor are 2 F and 2 H.

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Calculate the resonant frequency if the values of the capacitor and inductor are 2 F and 2 H.

(a) .5 rad/sec

(b) .6 rad/sec

(c) .8 rad/sec

(d) .9 rad/sec

The question was posed to me in exam.

The above asked question is from Dynamic Braking of DC Shunt Motors in chapter Braking of DC Motors & Induction Motors of Electric Drives

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Correct answer is (a) .5 rad/sec

To elaborate: During resonance condition XL=Xc. The value of the resonant frequency is 1÷√LC=1÷√4=.5 rad/sec. The Voltage across the capacitor and inductor becomes equal.

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