A student is provided with a variable voltage source V, a test resistor R(T) = 10 Ω, two identical galvanometers G₁ and G₂, and two additional resistors R₁ = 10 MΩ and R₂ = 0.001 Ω. For conducting an experiment to verify Ohm's law, the most suitable circuit is: Image
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Question

A student is provided with a variable voltage source V, a test resistor R(T) = 10 Ω, two identical galvanometers G₁ and G₂, and two additional resistors R₁ = 10 MΩ and R₂ = 0.001 Ω. For conducting an experiment to verify Ohm's law, the most suitable circuit is: Image

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G1 Physics · Accepted Answer

To verify Ohm's law: 1. The ammeter must be connected in series with the test resistor. 2. The voltmeter must be connected in parallel across the test resistor. 3. The ammeter should have very low effective resistance. 4. The voltmeter should have very high effective resistance. Using the given identical galvanometers: - the small resistor is used as a shunt to make the ammeter, - the large resistor is connected in series with the galvanometer to make the voltmeter. The arrangement satisfying t…