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A rectangular loop of length 2.5 m and width 2 m is placed at 60° to a magnetic field of 4T. The loop is removed from the field in 10 s. The average emf induced in the loop during this time is :

1. + 2 V
2. –2 V
3. –1 V
4. +1 V

Correct answer: +1 V

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