What should the resistance of the sections of a rheostat `R_(1)`, `R_(2)` and `R_(3)` be in order that the voltmeter (`R_(V) = 3

What should the resistance of the sections of a rheostat `R_(1)`, `R_(2)` and `R_(3)` be in order that the voltmeter (`R_(V) = 3000Omega`) range may change 10,100 and 1000 times when the rheostat slide is shifted from one contact to another.

What should the resistance of the sections of a rheostat `R_(1)`, `R_(2)` and `R_(3)` be in order that the voltmeter (`R_(V) = 3000Omega`) range may c

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