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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?
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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