A resistance R is to be measured using a meter bridge, student chooses the standard resistance S to be 100Ω. He finds the null point at 1₁ = 2.9cm. He is told to attempt to improve the accuracy. Which of the following is a useful way?

Question:

A resistance R is to be measured using a meter bridge, student chooses the standard resistance S to be 1002. He finds the null point at 1₁ = 2.9cm. He is told to attempt to improve the accuracy. Which of the following is a useful way?

Options :

a)He should measure l1 more accurately
b) He should changes S to 1000Ω and repeat the experiment
c) He should changes S to 3Ω and repeat the experiment
d)He should given up hope of a more accurate measurement with a meter bridge

Answer :

c) He should changes S to 3Ω and repeat the experiment

Answer Steps :

Step:-1

Step:-2

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