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5. During an experiment with a metre bri...

5. During an experiment with a metre bridge, the galvanometer shows a null point when the jockey is pressed at 40.0 cm using a standard resistance of 90 22, as shown in the figure. The least count of the scale used in the metre bridge is Imm. The unknown resistance is 902 PWC 40.0 cm (A) 60 = 0.1522 (B) 135 = 0.56 60 + 0.25 22 (D) 135 + 0.23 0

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