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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/secThe 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

Answer»

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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