Please wait...
Contact Us
Contact
Need assistance? Contact us on below numbers

For Study plan details

10:00 AM to 7:00 PM IST all days.

For Franchisee Enquiry

OR

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 number

93219 24448 / 99871 78554

Mon to Sat - 10 AM to 7 PM

What is value of R

Asked by Prashant DIGHE 19th July 2019, 5:09 PM
Answered by Expert
Answer:

Current in the circuit, I = 2E / ( r1 + r2 + R )  ...................(1)

if potential differece across first cell is zero, then we have  E - ( I×r1 ) = 0  ............(2)

by substituting I from eqn.(1), eqn.(2) is written as ,  E - [ (2E×r1) / ( r1 + r2 + R ) ] = 0  ................(3)

from eqn.(3), we get R = r1 - r2
Answered by Expert 20th July 2019, 10:28 AM
Rate this answer
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10

You have rated this answer 10/10

Tags: resistance
Your answer has been posted successfully!
RELATED STUDY RESOURCES :
NEET QUESTION ANSWERS

Latest Questions

CBSE X Biology
Asked by Sureshgowdayd548 28th October 2020, 10:50 PM
CBSE X Biology
Asked by reenacharan2008 28th October 2020, 9:11 PM