A rectangular loop consists of 128 closely wrapped turns and has dimensions 0.40

Question

A rectangular loop consists of 128 closely wrapped turns and has dimensions 0.400 m by 0.300 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0 with the x-axis (see figure below).

What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.832 T directed along the x-axis when the current in the windings has a value of 1.20 A in the direction shown?

N m

What is the expected direction of rotation of the loop?

Clockwise as viewed from above

Counterclockwise as viewed from the above

The magnitude is zero.

A rectangular loop consists of 128 closely wrapped turns and has dimensions 0.400 m by 0.300 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0½ with the x-axis (see figure below). What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.832 T directed along the x-axis when the current in the windings has a value of 1.20 A in the direction shown? N ½ m What is the expected direction of rotation of the loop? Clockwise as viewed from above Counterclockwise as viewed from the above The magnitude is zero.

Explanation / Answer

= NIBAsin

= 128*1.2*0.832*0.30*0.40*sin60

= 13.28 N.m

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