how to design a series multi-range voltmeter with its voltage range is given but its value of full scale deflection current (I fsd) and internal resistance (R m) is not given?(adsbygoogle = window.adsbygoogle || []).push({});

the voltage range given is 0-3V, 0-9V and 0-30V.

since to find the value of every single multiplier resistor is: R = Sensitivity X Range - Rm

Sensitivity, S = 1/I fsd

but the value of Rm and I fsd is not given..

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# Multi Range Voltmeter

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