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

question 80

Multiple Choice

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.

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