Questions 3-4 A rectangular wire loop carrying current of I = 200 mA has a side...
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Questions 3-4 A rectangular wire loop carrying current of I = 200 mA has a side of a = 2 cm and b - 6 cm as shown in the figure. The loop is placed to a uniform magnetic field of B= 2T. Initially, the angle between the area vector of the loop and the external magnetic field is = 37. (cos(37) = 0.8, sin (37) = 0.6.) 3. What is the magnitude of the torque acting on the loop initially? (a) 256 x 10-6 N.m (b) 248 x 10-6 N. m (c) 124 x 10-6 N.m (d) 144 x 10-6 N-m (e) 288 x 10-6 N-m 4. What is the potential energy of the loop initially? Take the potential energy to be zero at the angle = 90. (a) 248uJ (b) 288 J (c) -288 J (d) 256 J (e) -384J b 5 Questions 3-4 A rectangular wire loop carrying current of I = 200 mA has a side of a = 2 cm and b - 6 cm as shown in the figure. The loop is placed to a uniform magnetic field of B= 2T. Initially, the angle between the area vector of the loop and the external magnetic field is = 37. (cos(37) = 0.8, sin (37) = 0.6.) 3. What is the magnitude of the torque acting on the loop initially? (a) 256 x 10-6 N.m (b) 248 x 10-6 N. m (c) 124 x 10-6 N.m (d) 144 x 10-6 N-m (e) 288 x 10-6 N-m 4. What is the potential energy of the loop initially? Take the potential energy to be zero at the angle = 90. (a) 248uJ (b) 288 J (c) -288 J (d) 256 J (e) -384J b 5
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