Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

1. An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the length and radii of the wires are in the ratio of 4/3 and 2/3, then what is the ratio of the current through the wire? 

Asked by Sahil Kumar 20th March 2017, 6:00 PM
Answered by Expert
Answer:

Hi,

begin mathsize 12px style Use space the space formula colon space straight V subscript straight A minus straight V subscript straight B equals straight I subscript 1 straight R subscript 1 plus straight I subscript 2 straight R subscript 2
rightwards arrow straight I subscript 1 over straight I subscript 2 equals straight R subscript 1 over straight R subscript 2
Using space straight R equals straight rho 1 over πr squared
straight R subscript 1 over straight R subscript 2 equals straight I subscript 1 over straight I subscript 2 cross times open parentheses straight r subscript 1 over straight r subscript 2 close parentheses squared
Substitute space the space ratios space and space proceed space to space find space the space ratio space straight I subscript 1 over straight I subscript 2 end style

 

Answered by Expert 20th March 2017, 6:42 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp