Can you help me with with Part B and C. The answers are given, please explain wh

Question

Can you help me with with Part B and C. The answers are given, please explain why and show step by step calculation. please.

5-A circular (nat) coil with N-310 loops rotates about its diameter with a frequency of 55.0 He in a constant magnetic field of0300T.The area of the loops is 0.150 m Calculate (a) the emf generated in the coil. Now assume that the same coil is motor and a DC current of 600 A is passed through it. Calculate: b the value of the lorque when the B teld is perpendicular to the plane of the loop as shown in the figure. e) when B is on the plane of Ans, 12900 V, Hb00. e) 223 Nm

Explanation / Answer

part(a)

magnetic flux = N*B*A*coswt

emf = rate of change in flux

e = N*B*A*w*sinwt

emax = N*B*A*w

emax = 310*0.8*0.15*2*pi*55 = 12856 V = 12900 V

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part(b)

magnetic moment mue = N*I*A

magnetic field = B

torque = mue*B*sintheta

theta = angle between normal to the area and magnetic field

B is perepeniclar to plane ( parallel to normal to plane) theta = 0

torque = N*I*A*B*sin0 = 0   <<<----answer

part(c)

B is parallel to plane ( perpendicular to normal to plane) theta = 90

torque = N*I*A*B*sin90

torque = 310*6*0.15*0.8*sin90 = 223 Nm <<<----answer

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