A coil of wire has an area of 2.0 x 10-*m?, consists of 100 turns or loops and contains a current of 0.045A. The coil is placed in a uniform magnetic field of magnitude 0.15T. Determine the magnetic moment of the coil and the maximum possible torque that the
a) A coil of wire has an area of 2.0 x 10-*m?, consists of 100 turns or loops and contains a
current of 0.045A. The coil is placed in a uniform magnetic field of magnitude 0.15T.
Determine the magnetic moment of the coil and the maximum possible torque that the
magnetic field can exert.
b) List four factors affecting the size of the torque on the wire.
c) State faraday's law of
A coil of wire has an area of 0.02m? and consists of 50 turns. At t = 0 the coil is orientated
so the normal to its surface has direction (8 = 0°) to a constant magnetic field of magnitude
0.18T. The coil is then rotated through an angle of (8 = 30°) in a time of 0.10s. By using the
expression given below determine the average induced EMF.
E
• N(4 - Po)/(t-to)
4= BAcos(A)
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