Home
Class 12
PHYSICS
A group of electric lamps having a total...

A group of electric lamps having a total power rating of `1000` watt is supplied by an `AC` voltage `E=200sin(310t+60^(@))`. Then the r.m.s value of the circuit current is

A

`10A`

B

`10sqrt2A`

C

`20A`

D

`20sqrt2A`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Comphension Based|8 Videos
  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise QUESTION BANK|65 Videos
  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Single Correct Asnwer Type|27 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

A group of electric lamps having total power rating of 600 W, 200 V is supplied by an AC voltage V=169sin(314t+60^(@)) . The rms vlaue of the current is

[" 8.A group of electric lamp having a total power rating "1000W" is supplied by an "AC],[" voltage "E=200sin(310t+60^(@))" .The rms value of current in the circuit is "]

A group of electric lamps having total power rating of 900 watt is supplied an a.c. voltage E = 200 cos (314 t + 60^(@)) . Find rms value of alternating current.

A group of electric bulbs have a power rating of 300 watt. An a.c. voltage V - 314 sin (314 t + pi//3) is applied to the group. Calculate the effective current.

An alternating emf, e=200 sin omegat is applied to a lamp, whose filament has a resistance of 1000Omega . The rms valve of current is

The instantaneous current in an AC circuit is l = sqrt 2 sin(50 t + pi / 4 ) . The rms value of current is

The instantaneous current in an A.C. circuit is given by I= 2 sin (omega t+theta) ampere. The r.m.s. value of the current is

An AC voltage is given as e=e_(1) sin omega t . Find the RMS value of this voltage.

The maximum value of AC voltage in a circuit is 70V . Its r.m.s. value is

An a.c. Voltage given by e=100 sin(3.14 t + 60^(@)) is applied to a machine having a power rating of 500 W. The r.m.s. value of the current is the circuit is