The figure below shows a wheat stone bridge with resistors P and Q having almost equal resistance. When R = 400 Ω Ω , the bridge is in balanced condition. If on interchanging P and Q, the bridge is again balanced for R = 405 Ω Ω , then the value of X is
Text Solution
Verified by ExpertsThe correct answer is:
B
Initially,
Once we interchange P and Q, we get
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