A student is provided with a variable voltage source V, a test resistor R_T = 10 Ω, two identical galvanometer…

Question

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

Accepted Answer

B. Circuit $$(2)$$ — $$G_1$$ **in series with** $$R_1$$, that branch connected **across** $$R_T$$; $$G_2$$ **shunted by** $$R_2$$, placed **in series** in the main loop.

Answer

A. Circuit $$(1)$$ — $$G_1$$ **shunted by** $$R_2$$, that combination connected **across** $$R_T$$; $$G_2$$ **shunted by** $$R_1$$, placed **in series** in the main loop.

Answer

C. Circuit $$(3)$$ — $$G_1$$ **shunted by** $$R_1$$, that combination connected **across** $$R_T$$; $$G_2$$ **in series with** $$R_2$$, placed **in series** in the main loop.

Answer

D. Circuit $$(4)$$ — $$G_1$$ **shunted by** $$R_2$$, that combination connected **across** $$R_T$$; $$G_2$$ **in series with** $$R_1$$, placed **in series** in the main loop.

Answer & step-by-step solution

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