A solenoid having 174 turns and a cross-sectional area of 6.66cm2 carries a curr

Question

A solenoid having 174 turns and a cross-sectional area of 6.66cm2 carries a current of 1.18A .

Part A.

If it is placed in a uniform 1.18T magnetic field, find the torque this field exerts on the solenoid if its axis is oriented perpendicular to the field.

Part B

If it is placed in a uniform 1.18T magnetic field, find the torque this field exerts on the solenoid if its axis is oriented parallel to the field.

Part C

If it is placed in a uniform 1.18T magnetic field, find the torque this field exerts on the solenoid if its axis is oriented at 40.0o with the field.

Explanation / Answer

torque= N*I*B*A*sin?

a)

? = (174)(1.18)(1.18)(6.66 X 10-4)(sin 90) = 0.1614 N.m

b)

? = (174)(1.18)(1.18)(6.66 X 10-4)(sin 0) = 0 N.m

c)

? = (174)(1.18)(1.18)(6.66 X 10-4)(sin 40) = 0.1037 N.m

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