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Current Electricity — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity3 Marks
Question
What are the disadvantages of a potentiometer?
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Answer

Disadvantages of a potentiometer over a voltmeter :
  1. The use of a potentiometer is an indirect measurement method while a voltmeter is a direct reading instrument.
  2. A potentiometer is unwieldy while a voltmeter is portable.
  3. Unlike a voltmeter, the use of a potentiometer in measuring an unknown emf requires a standard . source of emf and calibration.

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