Mathematics · Electrical Measurements

An instrument with an internal resistance of 100 Ω and a full-scale deflection current of 1 mA is to be converted into a DC voltmeter with a range of 0 V to 500 V. Find the value of the series multiplier resistance required.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

499,900 Ω

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An instrument with an internal resistance of 100 &Omega; and a full-scale deflection current of 1 mA is to be converted into a DC voltmeter with a range of 0 V to 500 V. Find the value of the series multiplier resistance required.