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Three students perform the experiments on series and parallel combinations of two given resistors R1 and R2 and the following V-I graphs were obtained.

Which of the graphs is/are correctly formed? Justify your answer.

Three students perform the experiments on series and parallel combinations of two given resistors R1 and R2 and the following V-I graphs were obtained. Which of the graphs is/are correctly formed? Justify your answer. Physics Sample Paper Solved ICSE Class 10.

Current Electricity

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Answer

According to Ω's law:

V = IR,

V ∝ I hence, the V-I slope will be a straight line.

In series combination, the resistance is more than that in parallel hence slope of V-I graph for series will be more than the parallel and so the correct answer will be : fig. b

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