If the Magnetic Field Is Uniform Over the Area Bounded $\pi$

Multiple Choice

If the magnetic field is uniform over the area bounded by a circle with a radius R, the net current through the circle is:

A) "0"
B) "2 $\pi$ RB $\mu$ ₀"
C) " $\pi$ R²B/ $\mu$ ₀"
D) "RB/2 $\mu$ ₀"
E) "2RB/ $\mu$ ₀"