Current Electricity and Electrical InstrumentHard

Question

The length of a potentiometer wire is 10m. A standard cell of 1.1 volt is balanced at 550cm length of the wire. The maximum potential difference that can be measured with it is :-

Options

A.1.25 V
B.1.10 V
C.1.55 V
D.2.0 V

Solution

∵  x = Volt/meter
and maximum potential across wire
= xL = (10) = 2V

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