Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • An ac circuit consists of a series combination of circuit elements X and Y. The current is ahead of the voltage in phase by  . If element

An ac circuit consists of a series combination of circuit elements X and Y. The current is ahead of the voltage in phase by \frac{\pi }{4} . If element X is a pure resistor of 100\; \Omega,

(a) name the circuit element Y.

(b) calculate the rms value of current, if rms value of voltage is 141 V.

(c) what will happen if the ac source is replaced by a dc source?

 

 

Answers (1)

a) Current is leading the voltage by an angle of 45 degrees. So it is an RC series circuit. Therefore the element Y is a capacitor.

b)

 Z=\frac{R}{cos\phi}=100\sqrt{2}

I_{rms}=\frac{141}{100\sqrt{2}}=0.997A

c) The current in the circuit will become zero 

Posted by

Safeer PP

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

Board Exam Result 2025 Live: UK Board 10th, 12th results tomorrow; AP SSC, TS Inter, UP, CBSE updates
anam-khan

When will CBSE Class 12 results 2025 be declared? Last two years' trends
anam-khan

CBSE Class 10, 12 board exams 2025 from April 7 to 11 for sports students

Latest Question