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MHT CET2010PhysicsCurrent Electricity

For measurement of potential difference, potentiometer is preferred in comparison to voltmeter because

Options

  1. Apotentiometer is more sensitive than voltmeter
  2. Bthe resistance of potentiometer is less than voltmeter
  3. Cpotentiometer is cheaper than voltmeter
  4. Dpotentiometer does not take current from the circuit

Correct answer

D. potentiometer does not take current from the circuit

Step-by-step solution

Potentiometer works on null deflection method. In balance condition no current flow in secondary circuit.

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