MHT CET 2023 Physics question
When moving coil galvanometer (MCG) is converted into a voltmeter, the series resistance is 'n' times the resistance of galvanometer. How many times that of MCG the voltmeter is now capable of measuring voltage?
Answer: (C)
Solution
The galvanometer (resistance G) alone can measure a maximum voltage (at full-scale current ). With a series resistance , the full-scale current is still , so the maximum voltage measurable is I_g(GR_s)I_g(G$ +
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