A 10-turn square loop that is 20 cm on each side is placed perpendicular to a uniform 2 T magnetic field. The resistance of the loop is R = 40 ?. The magnitude of the field decreases uniformly to B = 0 in 0.1 seconds. How large is the electric current produced in the loop during that time?
the answer is B but why?

Question

A 10-turn square loop that is 20 cm on each side is placed perpendicular to a uniform 2 T magnetic field. The resistance of the loop is R = 40 ?. The magnitude of the field decreases uniformly to B = 0 in 0.1 seconds. How large is the electric current produced in the loop during that time?

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the answer is B but why?

14. A 10-turn square loop that is

20 cm

on each side is placed perpendicular to a uniform

2 T

magnetic field. The resistance of the loop is

R = 40?

. The magnitude of the field decreases uniformly to

B = 0

in 0.1 seconds. How large is the electric current produced in the loop during that time? a)

125 mA

b)

200 mA

c)

250 mA

d)

333 mA

e)

500 mA

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