A PMMC instrument with a 100 turn coil has magnetic flux density in its air gaps of B = 0.2 T. The coil diameter is D=1 cm and length is l= 1.5 cm. For a current of 1 mA, the torque on the coil will be

A PMMC instrument with a 100 turn coil has magnetic flux density in its air gaps of B = 0.2 T. The coil diameter is D=1 cm and length is l= 1.5 cm. For a current of 1 mA, the torque on the coil will be

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 3RQ

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Question

A PMMC instrument with a 100 turn coil has magnetic flux density in its air gaps
of B= 0.2 T. The coil diameter is D=1 cm and length is l= 1.5 cm. For a current
of 1 mA, the torque on the coil will be

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