Home
Class 12
PHYSICS
The instantaneous current and voltage of...

The instantaneous current and voltage of an a.c circuit are given by `i=10sin314t"A and"V=50sin(314t+pi//2)V.` What is the power dissipation in the circuit ?

Text Solution

Verified by Experts

Phase difference between V and `i=(pi)/(2)"rad."`
`thereforeP_("average")=(V_(m)I_(m))/(2).cosphi=(50xx10)/(2).cos0^(@)`
Promotional Banner

Similar Questions

Explore conceptually related problems

The instaneous values of alternating current and voltage in a circuit are I = 1/sqrt(2) sin (100 pi t) A and v= 1/sqrt(2) sin (100 pi t + pi/3) V. The average power in watts consumed in the circuit is

The instantaneous voltage from an ac source is given by V=300sin314t. Find its peak voltage and frequency of the sauce ?

The instantaneous current from an AC source is given by I=5sin314t. What is the rms value of the current ?

The instantaneous current from an ac source is I=6sin314t. What is the rms value of the current ?

i= 5 sin 314t. Which is the peak value of current?

The current in an inductive circuit is given by 0.3 sin(200t - 40^(@)) A. Write the equation for the voltage across it if the inductance is 40 mH.

The equation for an alternating current is given by i=77 sin 314t. Find the peak value .