A wire 88 cm long bent into a circular loop is placed perpendicular to the magnetic field of flux density 2.5 Wb. Within 0.5 s, the loop is changed into a square and flux density is increased to 3.0 Wb. The value of e.m.f. induced is :
0.018V
0.016V
0.020V
0.012V
A
0.012V
B
0.016V
C
0.020V
D
0.018V
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Answer is A.
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