A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current I in the wire flows to the right. In which direction must current flow in the loop to produce a net magnetic field of zero at its center?
A)counterclockwise
B)clockwise
C)It could be either clockwise or counterclockwise.
D)The current in the loop should be zero.

Question

A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current I in the wire flows to the right. In which direction must current flow in the loop to produce a net magnetic field of zero at its center? 
A)counterclockwise 
B)clockwise 
C)It could be either clockwise or counterclockwise. 
D)The current in the loop should be zero.

Quizplus · Accepted Answer

The Answer of A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current I in the wire flows to the right. In which direction must current flow in the loop to produce a net magnetic field of zero at its center? 
A)counterclockwise 
B)clockwise 
C)It could be either clockwise or counterclockwise. 
D)The current in the loop should be zero.

A Single Current-Carrying Circular Loop of Radius R Is Placed