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This device used a small loop of many turns rotating on an axis perpendicular to the magnetic field at fairly high speed and connected to an ac voltmeter by means of slip rings. The sensing coil for a rotating coil gaussmeter has 400 turns and an area of 1.4 cm2. The coil rotates at 180 rpm. If the magnetic field strength is 0.45 T,

find the maximum induced emf in the coil and the orientation of the coil relative to the field for which this maximum induced emf occurs.

Anyone know how to do this one? And more importantly why does it say 180rpm but also give me a value for n (400turns)

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# Homework Help: Guassmeter Calculation

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