A wire 2.5 m long is bent into a ___

A wire 2.5 m long is bent into a square.

An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to

A. 72 AT / m.
B. 144 AT / m.
C. 196 AT / m.
D. 222 AT / m.

Show Answer

Answer: B

Share your understanding of this question with the correct explanation.