A long wire carrying 6.50 A of current makes two bends, as shown in the figure (

Question

A long wire carrying 6.50A of current makes two bends, as shown in the figure (Figure 1) . The bent part of the wire passes through a uniform 0.280Tmagnetic field directed as shown in the figure and confined to a limited region of space.

A long wire carrying 6.50A of current makes two bends, as shown in the figure (Figure 1) . The bent part of the wire passes through a uniform 0.280Tmagnetic field directed as shown in the figure and confined to a limited region of space. Find the magnitude of the force that the magnetic field exerts on the wire. Find the direction of the force that the magnetic field exerts on the wire. Give your answer as a clockwise angle from the left-hand straight segment.

Explanation / Answer

IA_f only the bent part of the wire passes through the field region then;
F=Bil sin theta
theta=90 as its perp to field
so F=Bil
'to find l consider the triangle with 40 cm as perpendicular,
so sin 30=40 /hypotenuese
hypot.=80 cm =the length of wire
F=0.280*6.50*0.50 = 0.91 N

B) the force will be perp. to the wire at an angle of 60 degrees with the left straight segment

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