" In an ac circuit,the power factor "

The percentage increase in the impedance of an ac circuit, when its power factor changes form 0.866 to 0.5 is (Resistance constant) –

Power in an A.C. circuit||Power factor OF an A.C.||Wattless current||Examples on power OF an A.C. Circuit

Given below are two electric circuits A and B Calculate the ratio of power factor of the circuit B to the power factor of circuit A .

Given below are two electric circuits A and B Calculate the ratio of power factor of the circuit B to the power factor of circuit A .

Show in the figure, two electric circuits A and B. Calculate the ratio of power factor of the circuit B to the power factor of the circuit A.

The power factor of an L-R series circuit is 0.5 and that of a C-R series circuit is 0.2. If the elements (L, C and R) of the two circuit are joined in series and connected to the same ac source, the power factor of this circuit is found to be 1. The ratio of the resistance in the L-R circuit to the resistance in the C-R circuit is

Assertion: Chock coil is the prefered over a resistor to adjust current in an AC circuit. Reason: Power factor for inductance is zero.

A 60 cycle AC, circuit has a resistance of 200 Omega and inductor of 100 mH. What is the power factor? What capacitance placed in the circuit will make the power factor unity?

A 60 cycle AC, circuit has a resistance of 200 Omega and inductor of 100 mH. What is the power factor? What capacitance placed in the circuit will make the power factor unity?