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AIPMT 2013 Physics and Chemistry Paper

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Question : 24

Total: 90

The resistances of the four arms P,Q,R and S in a Wheatstone's bridge are 10‌ohm,30‌ohm,30‌ohm and 90‌ohm, respectively. The e.m.f. and internal resistance of the cell are 7 volt and 5‌ohm respectively. If the galvanometer resistance is 50‌ohm, the current drawn from the cell will be :-

2.0A
1.0A
0.2A
0.1A

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