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Q.

An electric current i1 can flow either direction through loop (1) and induced current i2 in loop (2). Positive i1 is when current is from 'a' to 'b' in loop (1) and positive i2 is when the current is from 'c' to 'd' in loop (2)

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In an experiment, the graph of i2 against time 't' is as shown below. Which one(s) of the following graphs could have caused i2 to behave as give above.

           

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a

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b

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c

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d

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answer is D.

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Detailed Solution

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Current shown is +ve i.e., it is flowing from ‘c’ to ‘d’ and is constant current in loop should be –ve i.e., flows from‘b’ to a and should increases at constant rate.

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An electric current i1 can flow either direction through loop (1) and induced current i2 in loop (2). Positive i1 is when current is from 'a' to 'b' in loop (1) and positive i2 is when the current is from 'c' to 'd' in loop (2) In an experiment, the graph of i2 against time 't' is as shown below. Which one(s) of the following graphs could have caused i2 to behave as give above.