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A metre bridge wire of resistance 3 Omeg...

A metre bridge wire of resistance 3 `Omega` is connected to a cell of emf 2 V and internal rsistance 1 `Omega` Claculate the p.d cm of the wire What length of this wire will balace a fesh dry cell of emf 1.5 V?

Text Solution

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The correct Answer is:
0.015V//cm,full length of it
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Knowledge Check

  • A resistance of 4 Omega and a wire of length 5 meters and resistance 5 Omega are joined in series and connected to a cell of e.m.f. 10 V and internal resistance 1 Omega . A parallel combination of two identical cells is balanced across 300 cm of wire. The e.m.f. E of each cell is

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