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Current Electricity — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsCurrent Electricity1 Mark
MCQ
The net resistance of a voltmeter should be large to ensure that
  • A
    It does not get overheated
  • B
    It does not draw excessive current
  • C
    It can measure large potential difference
  • ✓
    It does not appreciably change the potential difference to be measured
✓

Answer

Correct option: D.
It does not appreciably change the potential difference to be measured
(d) The resistance of voltmeter is too high, so that it draws negligible current from the circuit, hence potential drop in the external circuit is also negligible.

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