Question

In the given circuit no current is flowing through 100 ohm resistor calculate the value of R? please help, it's urgent ​

Answer 1

This is a Whitestone bridge so.......

P/Q = R/S P=10, Q=5, R=40, S=R

10/5 = 40/R

2 = 40/R

R = 40/2

R = 20 ohm

Answer 2

R=20 ohm

I hope it will help you..