Find in an alternating LR circuit, (i) resultant voltage (ii) impedance of circuit, (iii) Phase difference, (iv) average power.

If the power factor in a circuit is unity, then the impedance of the circuit is

As the frequency of an alternating current increases, the impedance of the circuit

Find out impedance of given circuit.

In an electrical circuit R,L, C and a.c voltage source are all connected in series. When L is removed from the circuit , the phase difference between the voltage and current in the circuit is π/6. If instead ,C is removed from the circuit , the phase difference is again π/6 . The power factor of the circuit is

A circuit consists of a 2 mu F capacitor and a resistor of 1 kOmega . An a.c. source of 12 V, 50 hz is connected across the circuit. Calculate (i) current flowing (ii) voltage across capacitor (iii) phase angle between voltage and current (iv) average power supplied.

In the circuit diagram given alongside, find: (i) total resistance of the circuit, (ii) total current flowing in the circuit, and (iii) the potential difference across R_(1)

In an electrical circuit R,L,C and an AC voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is pi//3 . If instead, C is removed from the circuit, difference the phase difference is again pi//3 . The factor of the circuit is

At resonance in an LCR circuit the emf and current are (i) in phase . (ii) out of phase . (iii) having a phase difference of pi//2 . (iv) having a phase difference of pi //6 .