Mathematics · Electrical Circuits - Voltmeter Design
A moving coil instrument having a resistance of 10 Ω gives a full-scale deflection when the current is 10 mA. What should be the value of the series resistance required so that it can be used as a voltmeter for measuring potential differences up to 100 volts?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 19990 Ω✓
- 2990 Ω
- 399 Ω
- 49 Ω
Correct answer
9990 Ω
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