A student is provided with a variable voltage source V, a test resistor RT = 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: (a) (b) (c) (d)

Answer: (c). Voltmeter across RT: galvanometer with the large resistance R₁ = 10 MΩ in series, connected in parallel with RT. Ammeter in series: galvanometer with the small shunt R₂ = 0.001 Ω in parallel. Circuit (c) has G₁ + R₁ across RT and G₂ ∥ R₂ in the main line. So the answer is (c).

A student is provided with a variable voltage source V, a test… | JEE Main 2023 (6 Apr, Shift 2)

Q100JEE Main 2023 · 6 APR · SHIFT 2Difficult

Kirchhoff's Laws & Measuring Instruments

A student is provided with a variable voltage source $\mathrm{V}$ , a test resistor $R_T = 10\ \Omega$ , two identical galvanometers $G_1$ and $G_2$ and two additional resistors, $R_1 = 10\ M\Omega$ and $R_2 = 0.001\ \Omega$ . For conducting an experiment to verify Ohm's law, the most suitable circuit is:

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Answer: (c)

Voltmeter across $R_T$ : galvanometer with the large resistance $R_1 = 10\text{ M}\Omega$ in series, connected in parallel with $R_T$ .
Ammeter in series: galvanometer with the small shunt $R_2 = 0.001\ \Omega$ in parallel.
Circuit (c) has $G_1 + R_1$ across $R_T$ and $G_2 \parallel R_2$ in the main line.
So the answer is (c).

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