Home
Class 12
PHYSICS
An alternating current in a circuit is g...

An alternating current in a circuit is given by I=20 sin `(100pi t + 0.05pi)`A. The r.m.s value and the frequency of current respectively are,

A

10A & 100Hz

B

10A & 50Hz

C

`10 sqrt2A` & 50Hz

D

`10 sqrt2A` & 100Hz

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise Category-II|10 Videos

  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise Category-III|5 Videos

  • QUESTION PAPER 2012

    WB JEE PREVIOUS YEAR PAPER|Exercise Subject: Physics|38 Videos

  • QUESTION PAPER 2014

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY III)|3 Videos

Similar Questions

Explore conceptually related problems

The alternating current in an alternating circuit is given by I=I_0sinomegat In this case

The instantaneous current in an ac circuit is I=6sin314tA . What is the rms value of current ?

If an alternating current is represented by I=sin100pit mA. What is the peak value?

An alternating voltage (E) varies with time (t) in a circuit which is given by E=200sin(100pit-(pi)/20) volt. The R.M.S value of the voltage is

If an alternating current is represented by . I=sin100pit mA,then what is the frequency of that current?

Find the r.m.s. value of alternating current over a complete cycle.

An alternating current is given by the equation I=i_1sinomegatcosomegat .The rms current is given by

Expression of an alternating current is I=0.5sin100pitA . Determine the frequency , peak value and rms value of the current.

Equation of an ac is I=10 sin (200pit-pi/15) ampere. Determine the frequency and peak value of the current.

The equation of a progressive wave can be given by Y = 15 sin (660 pi t -0.02pi x) cm . The frequency of the wave is