2/20/2016 11:55 PM A 494/100 Gradebook Print Calculator Periodic Table Question

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2/20/2016 11:55 PM A 494/100 Gradebook Print Calculator Periodic Table Question 6 of 12 Incorrect Map A pling at 1.40 x 102-turn current-carrying loop is immersed in a uniform magnetic field. The area of the oop is 7.27 10 m and the angle between its magnetic dipole moment and the field is 39.7°. Find the strength of the magnetic field that causes a torque of 1.81 x 105 N. m to act on the loop when a current of 0.00321 Aflowsini Number 061 There is a hint available! View the hint by clicking on the divider bar again to hide the hint. Close O Previous ® Give Up & View solution Check Answer Next H Ext Hint

Explanation / Answer

Magnetic Field = (N*mu*current)/2 * radius

N= no. of turns

mu = 4*pi*10^-7

current =0.00321 A

radius =sqrt(A/pi) = sqrt(7.27e-4/3.14) =1.52e-2 m

Magnetic Field = (1.4e2 *4*3.14 *e-7*0.00321)/2*1.52e-2 =0.018e-3 T

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