Question

A generator in a 0.300T magnetic field, with 3 loops produces 24.0V when turning at 900 rev/min. Find the maximal torque for this system.

Answer #1

The relation between emf , magnetic moment(M) and magnetic field (B) is emf=MBsin

The torque acting on the system is =MBsin=emf /

Given frequency f = 900 rev /min = 900/60 rev/sec = 15 rev/s

= = 2x 3.14 x 15 =94.2 rad/s

Then torque = emf / =24/94.2 = 0.25 N-m

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