Home
Class 12
PHYSICS
In a wire direct current i(1) and an AC ...

In a wire direct current `i_(1)` and an AC current `i_(2)=i_(20) sin omega`t is superposed. Find the RMS value of current in wire.

Text Solution

Verified by Experts

The correct Answer is:
`sqrt(i_(1)^(2)+(i_(20)^(2))/(2))`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 5.6|8 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 5.7|11 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 5.4|13 Videos

  • CURRENT ELECTRICITY

    PHYSICS GALAXY - ASHISH ARORA|Exercise All Questions|389 Videos

  • ELECTROSTATICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numberical Problems|73 Videos

Similar Questions

Explore conceptually related problems

An AC current is given by i(t) = I_(1)sin wt + I_(2)cos wt . Find the rms value of current.

A current is made of two components a dc component i_(1) = 3A and an ac component i_(2) = 4 sqrt(2) sin omega t . Find the reading of hot wire ammeter?

The rms value of current I _ ( rms ) is

An altemating current is given by 1 = 1_(1) cos omega t + 1_(2) sin omega t. The RMS value of current is given by

If an alternating current is given by i = a sin ( omega t) + b cos ( omega t), then 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

If instantaneous current is given by i=4 cos(omega t + varphi) amperes, then the r.m.s. value of current is

A wire carries an alternating current i=i_0 sin omega t. In there an electric field in the vicinity of the wire?

If the instantaneous current in a circuit is given by I = 20 cos (omega t + phi) A , the rms value of the current is