There Is a Current I Flowing in a Clockwise Direction

question 54

Multiple Choice

There is a current I flowing in a clockwise direction in a square loop of wire that is in the plane of the paper.If the magnetic field B is toward the right,and if each side of the loop has length L,then the net magnetic force acting on the loop is

• A)2ILB.
• B)ILB.
• C)IBL².
• D)zero.