Question

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7 5.00 A current of A.BA is maintained in a single circular loop having a circumference of 100Cmo of 80 em. An external magnetic field of 2.0 T is directed so that the angle between the field and the plane of the loop is 20°. Determine the magnitude of the torque exerted on the loop by the magnetic forces acting upon it. torquest=

Answer 1

O. Current in loob. I-5A circumference of loop, C= 100 cm calm .. magni tude magnetic field, brat Angle between field and place of loop, 0 = 20° Number of twins of loop, N=1 Casit is single cocular loop) of torque acting on loop is given T NIAG sin TE L 5* whore A is area of loop Let so be seadius of loop cocamforence, C= 1m al air=1m => ra 1 m . area of loop. A=The ² => A= π x 1 at A:00795 m? ..t=(1x 5 x 0.0795*2 x sin20 ) Nm o 272 Nm Hence magnitude of torque exertedon loop by magnetic forces is t = 0.272 Nin २।। 2 m )