MHT CET 2023 Physics question
A wire of length 3m connected in the left gap of meter-bridge balances resistance in the right fap at a point, which divides the bridge wire in the ratio 3 : 2. The length of the wire corresponding to resistance of is
Answer: (D)
Solution
At balance of a meter bridge, , where is the resistance of the 3 m wire in the left gap. So . A 3 m wire has a resistance of , so the length
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