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Conductance of Electrolytic Solution

A metre bridg...

Question

A metre bridge is balanced with known resistance in the right gap and a metal wire in the left gap. If the metal wire is heated the balance point

A

shifts towards left

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B

shifts towards right

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C

does not change

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D

may shift towards left or right depending on the nature of the metal

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Solution

The correct option is C shifts towards right
When heated the resistance of the metal wire increases thereby requiring more length of wire to balance the circuit.
$∴$ the balance point shifts to right.

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