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प्रश्न
What will be the effect on the position of zero deflection if only the current flowing through the potentiometer wire is decreased?
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उत्तर
The potential gradient along the wire will decrease as the current through the potentiometer wire is reduced. Hence, the position of zero deflection will occur at a longer length.
`"E"_1 = ("IR"/"L")"l"_1` = constant.
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