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## Main Question or Discussion Point

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?

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..

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..