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In the network shown cell of emf E has internal resistance r and the galvanometer shows zero deflection. If the cell is replaced by a new cell of emf 2E and internal resistance 3r keeping everything else identical then
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The correct answer is:
The galvanometer show zero deflection,
In given circuit diagram, galvanometer shows zero deflection, hence it is a Wheatstone balanced circuit.
Hence,
On replacing a new cell of emf 2E and internal resistance 3r, no effect occurs on balanced condition of bridge, i.e., .
Hence, the galvanometer will shows zero deflection.
Hence,
On replacing a new cell of emf 2E and internal resistance 3r, no effect occurs on balanced condition of bridge, i.e., .
Hence, the galvanometer will shows zero deflection.
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