Home
Class 12
PHYSICS
(a) The peak voltag3e of an a.c. supply ...

(a) The peak voltag3e of an a.c. supply is 300 V. What is its r.m.s voltages?
(b) The r.m.s value of current in an ac circuit is 10 A. What is the peak current ?

Text Solution

Verified by Experts

(a) Here, `E_(0) = 300 V, E_(v) = ?`
As `E_(v) = (E_(0))/(sqrt2) :. E_(v) = (300)/(sqrt2) = (300 sqrt2)/(sqrt2 sqrt2) = 212.1` volt
(b) Here, `I_(v) = 10 A, I_(0) = ?`, `I_(0) = sqrt2 I_(v) = 1.414 xx 10 = 14.14 A`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise Solved Examples (b)|1 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise Short Answer Qusetions|2 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    PRADEEP|Exercise Exercise|191 Videos

  • ELECTROMAGNETIC WAVES

    PRADEEP|Exercise II Focus multiple choice question|5 Videos

Similar Questions

Explore conceptually related problems

a) The peak voltage of an AC supply is 300 V. What is the rms voltage? b) The rms value of current in an AC circuit is 10A. What is the peak current?

The rms value of current in an ac circuit is 25 A, then peak current is

The peak voltage of an ac supply is 440 V, then its rms voltage is

The peak value of an supply is 300 V. What is the rms voltage?

The rms value of AC circuit is 10A, what is peak current?

if the effective value of A.C in a circuit is 10A, then the peak value of current a

The instantaneous current from an a.c. source is I = 6 sin 314 t . What is the r.m.s value of the current ?

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

The maximum value of a.c. voltage in a circuit is 707 V . Its rms value is