Physics · Electrical Measuring Instruments
What is the primary cause of the loading effect in a voltmeter when measuring voltage across a load?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Additional current flows through the load
- 2The internal resistance of the voltmeter comes in series with the load resistance
- 3Additional voltage appears across the load
- 4The internal resistance of the voltmeter comes in parallel with the load resistance✓
Correct answer
The internal resistance of the voltmeter comes in parallel with the load resistance
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