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MHT CET2016PhysicsCurrent Electricity

In a potentiometer experiment, the null point is obtained at a particular point for a cell on potentiometer wire x cm long. If the length of the potentiometer wire is increased without changing the cell, the balancing length will (Driving source is not changed)

Options

  1. Aincrease
  2. Bdecrease
  3. Cnot change
  4. Dbecomes zero

Correct answer

A. increase

Step-by-step solution

On increasing the length of the potentiometer wire, the potential gradient will decrease, hence longer balancing length is required.

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