Home
Class 12
PHYSICS
If E(0) is the peak emf , l(0) is the pe...

If `E_(0)` is the peak emf , `l_(0)` is the peak current and `phi` is the phase difference between them, then the average power dissipation in the circuit is

A

`1/2 E_0 I_0`

B

`(E_0 I_0)/(sqrt2)`

C

`1/2 E_0 I_0 sin phi`

D

`1/2 E_0 I_0 cos phi`

Text Solution

Verified by Experts

The correct Answer is:
D

Average power dissipation = `1/2 E_0 I_0 cos phi`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MTG GUIDE|Exercise NEET CAFE TOPICWISE PRATICE QUESTIONS (WATTLESS CURRENT)|1 Videos
  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MTG GUIDE|Exercise NEET CAFE TOPICWISE PRATICE QUESTIONS (AC GENERATOR AND TRANSFORMER)|14 Videos
  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MTG GUIDE|Exercise NEET CAFE TOPICWISE PRATICE QUESTIONS (SERIES LR AND CR CIRCUITS)|1 Videos
  • DUAL NATURE OF MATTER AND RADIATION

    MTG GUIDE|Exercise AIPMT/ NEET MCQs|30 Videos
  • ELECTROMAGNETIC WAVES

    MTG GUIDE|Exercise AIPMT/NEET(MCQs)|15 Videos

Similar Questions

Explore conceptually related problems

The phase difference between voltage and current in series L-C circuit is

When an AC source of emf e=E_(0) sin(100t) is connected across a circuit i in the circuit, the phase difference between the emf e and the current i in the circuit is observed to be (pi//4) , as shown in the diagram. If the circuit consists possibly only of R-C or R-L or L-C in series, find the relationship between the two elements

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)

A sinusoidal voltage of peak value 283 V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 ohm , L = 25.48 mH and C = 796 mu F . Find (a) the impedance of the circuit (b) phase difference between the voltage across the source and current (c) the power dissipated in the circuit and (d) the power factor.

A pure inductance is connected to an AC source. What will be the phase difference between the current and the EMF in the circuit?

The power factor of an, ac circuit is 0.5 Phase , difference between voltage , and current in this circuit is

In resonant circuits, at resonance, the phase difference between current and emf is

A lamp consumes only 50% of peak power in an a.c. circuit. What is the phase difference between the applied voltage and the circuit current

The power factor of an AC circuit is 0.5 . What will be the phase difference between voltage and current in this circuit ?