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Edit View History Bookmarks Tools Window Help Physics 10th Edition Textb LUS Cutnell, Physics, 10e General Physics (General Physics ly & Practice ORION FULL scarrN PRINTER vrRSaON BACK Chapter 21, Problem 49 Your answer is partially comect. Try again turns and magnetic feld is drected along the +y axis. The loopis free to rotate about the z axis (a) em Determine the magnitude of the net torque exerted on the loop and (b) state whether the 35° angle will increase or decrease. (a) Number T219.3 (b) The 35 angle Dwill increase The number of signincant digits is set to 2; the tolerance +/-2% click if you would like to show work for this question open show work Division of aabo wlee Sans-ins. Au Rights Reserved IN X

Explanation / Answer

Given turns N = 75

current I = 6.0 A

magnetic field B = 1.7 T

(a) Note T = N*I*A*B*sin

we see that the angle between the normal to the plane of the loop and the magnetic field is 90 degrees - 35 degrees = 55 degrees.

The area of the loop is 0.70m x 0.50m = 0.35 m^2

T = N*I*A*B*sin

= (75)*(6.0 A)*(0.35 m^2)*(1.7 T)*sin(55 degrees)

= 219.32795 N*m

(b) 35 degree will increase.

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