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 sec. The average emf induced in the loop during this time is

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Solution

Q.
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 sec. The average emf induced in the loop during this time is [2024]

1 $- 2 V$

2 $+ 2 V$

3 $+ 1 V$

4 $- 1 V$

Ans.
(3)

$e = - \frac{0 - (4 \times (2.5 \times 2) \cos 60 °)}{10} = + 1 V$

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