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Question 31673
JEE Physics · Medium

Current Electricity: Voltmeter Error MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Voltmeter ErrorMediumQuestion 31673

Question

Connecting a voltmeter with finite resistance across a resistor causes measured voltage to be:
  1. A
    Higher than without voltmeter
  2. B
    Same as without voltmeter
  3. C
    Lower than without voltmeter
    Correct
  4. D
    Zero

Correct answer

Lower than without voltmeter

Explanation

Voltmeter in parallel reduces effective resistance and draws some current, lowering the voltage across the component — real voltmeter always under-reads.

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