Determine the value of inductance which will give resonance with triple

Determine the value of inductance which will give resonance with triple




An e.m.f. e = 200 sin ?t + 40 sin 3 ?t + 10 sin 5 ?t is impressed on i circuit comprising of a resistance of 10 ?, a variable inductor and a capacitor of capacitor 30 µF. all connected in series. Determine the value of inductance which will give resonance with triple frequency component of the pressure and estimate the effective power factor of the circuit ? = 300 rad/s.





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