xercise 27.40 ? 14 of 16 PartA What torque acts on the loop? Express your answer

Question

xercise 27.40 ? 14 of 16 PartA What torque acts on the loop? Express your answer using two significant figures Constants The plane of a rectangular loop of wire with a widtlh of 5.0 cm and a height of 8.0 cm is parallel to a magnetic field of magnitude 0.17 T. The loop carries a current of 7.0 A T= Submit Part B What is the magnetic moment of the loop? Express your answer using two significant figures A m Submit Part C What is the maximum torque that can be obtained with the same total length of wire carrying the same current in this magnetic field? Express your answer using two significant figures.

Explanation / Answer

Part A

T = IABsin theta

= 7*(0.05*0.08)*0.17*sin 90 degree

= 0.00476 Nm

Part B

Magnetic moment = I*A

= 7*0.05*0.08

= 0.028 A m^2

Part C

T = I*B*(w+h) ^2 /pi

= 7*0.17*(0.05+0.08)^2 /pi

= 0.0064 Nm

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