A Ring with a Clockwise Current (As Viewed from Above

question 139

Multiple Choice

A ring with a clockwise current (as viewed from above the ring) is situated with its center directly above another ring,which has a counter-clockwise current,as shown in the figure.In what direction is the net magnetic force exerted on the top ring due to the bottom ring?

• A)upward
• B)downward
• C)to the left
• D)to the right
• E)The net force is zero.

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