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A teacher in his physics laboratory allotted an experiment to determine the resistance (G) of a galvanometer. Students took the observations for 3 1 deflection in the galvanometer. Which of the below is true for measuring value of G ?

1. 3 1 deflection method cannot be used for determining the resistance of the galvanometer.
2. 3 1 deflection method can be used and in this case the G equals to twice the value of shunt resistance (s)
3. 3 1 deflection method can be used and in this case, the G equals to three times the value of shunt resistance (s)
4. 3 1 deflection method can be used and in this case the G value equals to the shunt resistance(s)

Correct answer: 3 1 deflection method can be used and in this case the G equals to twice the value of shunt resistance (s)

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