Question

You are provided with a test resistance R, a high resistance R₁ and a small resistance R₂ , two identical galvanometer G₁ and G₂ and a variable voltage source V. You are required to set up a circuit for the verification of ohm’s law. Which of the following would be a correct circuit?

Answer 1

Correct option is (3)

Here we have to use galvanometer G₁ , with a high resistance in series, in place of the voltmeter. Similarly galvanometer G₂ , with a parallel small resist once, takes the place of the ammeter. 

Hence the circuit diagram (3) is the correct circuit for the verification of ohm’s law.