Alternating Current questions
577 published questions with worked solutions.
- At resonance power factor of the resonant circuit is
- In resonant circuit at resonant frequency
- In resonant circuits at resonance the phase difference between current and emf is
- In series resonant circuits, at resonance the phase difference between the voltage across inductor and voltage across condenser is
- Voltage magnification factor of a series resonant circuit is
- The ratio of voltage across inductor/condenser to the voltage across resistor in a series resonant circuit is
- The voltage across inductor and condenser at resonance is
- Power delivered by an a.c. source of an angular frequency to an LCR series circuit is maximum
- A pure resistive circuit element X when connected to an a.c. supply of peak value 200 V, gives a peak current of 5 A which is in...
- In rejector circuit above resonant frequency the circuit is
- A coil of 4 mH and a capacitor of 10 are in series with an a.c. source along with 5 resistance. If inductive reactance is equal...
- In series R-C circuit current leads e.m.f. by 2 9 . This implies,
- A series RLC circuit has the following value R=20 , X_L=10 . The applied voltage (rms) of 50 V at =100 rad/s. Current 2 A leads...
- A resistor and an inductor are connected in series to a 220 V A.C. supply. When measured with an AC voltmeter, the P.D. across...
- The angular frequency of the a.c. at which 1 mH inductor has a reactance of 1 is
- A resistor, an inductance and a capacitance are connected in series to an a.c. supply. When measured with the help of an a.c....
- An alternating emf of 100 V (rms) is applied to a series LCR circuit. At resonance, the potential difference across the...
- An inductance of 10 mH, a resistance of 3 and a c... source of 15 t volt in an LCR circuit. The amplitude o... resonant frequency...
- An alternating emf is applied to an inductance (L) and capacitance (c) joined in series. it is found that the current through...
- An inductance 0.5 H a capacitor of capacitance 10^ -9 F and resistance 100 are connected in series across A.C. source of e.m.f.10...
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