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Question
The radius of potentiometer wire is doubled without changing its length. The value of potential gradient:
The radius of potentiometer wire is doubled without changing its length. The value of potential gradient:
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Solution
The correct option is C does not change
In the potentiometer circuit, the potential drop across potentiometer = emf of battery.
Potential Gradient =P.DL
as Potential Difference and L are constant so Potential Gradient does not change
In the potentiometer circuit, the potential drop across potentiometer = emf of battery.
Potential Gradient =P.DL
as Potential Difference and L are constant so Potential Gradient does not change
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