If the Magnetic Field at the Center of a Square $\times$

Multiple Choice

If the magnetic field at the center of a square current loop of side L = 40 cm is 2.4 $\times$ 10^-6 T calculate the current flowing around the loop.

A) 11 A
B) 3.4 A
C) 0.85 A
D) 0.21 A
E) 1.7 A