Home
Class 12
PHYSICS
When a voltage V(s)=200 sqrt(2) sin (100...

When a voltage `V_(s)=200 sqrt(2) sin (100 t) V` is applied to an ac circuit the current in the circuit is found to be `i=2 sin [omega t + (pi//4)]A`. Find the average power consumed in the circuit.

Text Solution

Verified by Experts

The correct Answer is:
`100 sqrt(6) W`

`P_(av) =v_(rms)I_(rms) cos phi`
`=(200 sqrt(2))/(sqrt(2)) (2)/(sqrt(2)) cos (30^@) =100 sqrt(6) W`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Exercises Single Correct|63 Videos
  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Exercises Multiple Correct|5 Videos
  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Exercise 5.1|15 Videos
  • OSCILLATIONS

    CENGAGE PHYSICS|Exercise QUESTION BANK|39 Videos
  • ATOMIC PHYSICS

    CENGAGE PHYSICS|Exercise ddp.4.3|15 Videos

Similar Questions

Explore conceptually related problems

When a voltage v_(S)=200sqrt2 sin (omega t+15^(@)) is applied to an AC circuit the current in the circuit is found to be i=2 sin (omegat+pi//4) then average power concumed in the circuit is (A) 200 watt , (B) 400sqrt2 watt , (C ) 100sqrt6 watt , (D) 200sqrt2 watt

When a voltage v_(s)=200sqrt2 sin (omega t=15^(@)) is applied to an AC circuit the current in the circuit is found to be i=2som (omegat+pi//4) then average power consumed in the circuit is

Knowledge Check

  • For an ac circuit V=15 sin omega t and I=20 cos omega t the average power consumed in this circuit is

    A
    300 watt
    B
    150 watt
    C
    75 watt
    D
    zero
  • For an AC circuit V=15sin omegat and I=20cos omegat the average power consumed in this circuit is

    A
    `300` watt
    B
    `150` watt
    C
    `75` watt
    D
    zero
  • Voltage applied to an AC circuit and current flowing in it is given by V=200sqrt2sin(omegat+pi/4) and i=-sqrt2cos(omegat+pi/4) Then, power consumed in the circuited will be

    A
    `200 W`
    B
    `400W`
    C
    `200sqrt2W`
    D
    none of these
  • Similar Questions

    Explore conceptually related problems

    An Ac voltage V=V_0 sin 100t is applied to the circuit, the phase difference between current and voltage is found to be pi/4 , then .

    AC source represented as V = V_(0) sin omega t is applied to a circuit and current I = I_(0) sin (omega t + pi//2) is found to flow through the circuit . What will be average power consumed in the circuit ?

    Voltage input in a circuit is V = 300 sin (omega t) with current = 100 cos(omega t) . Average power loss in the circuit is

    An alternating voltage (in volts) given by V=200sqrt(2)sin(100t) is connected to 1 mu F capacitor through an ideal ac ammeter in series. The reading of the ammeter and the average power consumed in the circuit shall be

    The e.m.f. and the current of an A.C. circuit are e=5cos omega t volt and I=2sin omega t ampere respectively. The power consumed in the circuit is