Physics-
General
Easy
Question
In the figure given the value of X resistance will be, when the p.d. between B and D is zero
- 4 ohm
- 6 ohm
- 8 ohm
- 9 ohm
The correct answer is: 8 ohm
Potential difference between B and D is zero, it means Wheatstone bridge is in balanced condition
So 
Þ 
Þ 
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