A student is provided with a variable voltage source , a test resistor , two identical galvanometers and , and two additional resistors, and . For conducting an experiment to verify Ohm's law, the most suitable circuit is [2023]

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Solution

Q.
A student is provided with a variable voltage source $V$ , a test resistor $R_{r} = 10 Ω$ , two identical galvanometers $G_{1}$ and $G_{2}$ , and two additional resistors, $R_{1} = 10 M Ω$ and $R_{2} = 0.001 Ω$ . For conducting an experiment to verify Ohm's law, the most suitable circuit is [2023]

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Ans.
(3)

To convert galvanometer into ammeter low resistance should be added in parallel and for voltmeter conversion, a very high resistance should be added in series.

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