Home
Class 12
PHYSICS
In an AC circuit , the power factor...

In an AC circuit , the power factor

A

is zero when the circuit contains an ideal resistance only

B

is unity when the circuit contains an ideal resistance only

C

is zero when the circuit contains an ideal inductance only

D

is unity when the circuit contains an ideal inductance only

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-G|10 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-E|10 Videos

  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise JEE Advance (Archive) Level - II (SINGLE OPTION CORRECT TYPE )|31 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise IMPECCABLE|52 Videos

Similar Questions

Explore conceptually related problems

The potential differences across the resistance, capacitance and inductance are 80 V, 40 V and 100 V respectively in an L-C-R circuit. The power factor of this circuit is

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 .

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?

In the given circuit, power factor between A and B is 0.5 and over all power factor of the circuit is 1. Find the value of Rand L

If V_0 and I_0 are the peak current and voltge across the resistor in a series L-C-R circuit, then the power dissipated in the circuit is (power factor =costheta)

In the circuit shown there is a box and capacitance C connected to alternating power source of angular frequency of 2 rad//s. Box has power factor 1 //sqrt2 and circuit has overall power factor 1 1. Find the impedance of the box

In the circuit shown there is a box containing a resistor and an inductor and the box in series with the capacitance C connected to alternating power source of frequency to 2 rad/s. Box has power factor 1/sqrt2 and circuit has overall power factor 1. The impedance of the box is

The r.m.s current in an AC circuit is 2A . If the wattless current be sqrt(3)A , what is the power factor?

In the circuit shown in fin. Calculate the capacitance C of the capacitor, if the power factor of the circuit is unity. Also, calculate Q factor of the circuit.

In a series LCR circuit, at resonance, power factor is …….. .