The rotor in a certain electric motor is a flat, rectangular coil with 88 turns of wire and dimensions 2.50 cm by 4.00 cm. The rotor rotates in a uniform magnetic field of 0.800 T. When the plane of the rotor is perpendicular to the direction of the magnetic field, it carries a current of 9.9 mA. In this orientation, the magnetic moment of the rotor is directed opposite the magnetic field. The rotor then turns through one-half revolution. This process is repeated to cause the rotor to turn steadily at 3600 rev/min. (a) Find the maximum torque acting on the rotor. Tmax=[ N-m (b) Find the peak power output of the motor. Pmax= w (c) Determine the amount of work performed by the magnetic field on the rotor in every full revolution. W = J (d) What is the average power of the motor? Pavg= W

The rotor in a certain electric motor is a flat, rectangular coil with 88 turns of wire and dimensions 2.50 cm by 4.00 cm. The rotor rotates in a uniform magnetic field of 0.800 T. When the plane of the rotor is perpendicular to the direction of the magnetic field, it carries a current of 9.9 mA. In this orientation, the magnetic moment of the rotor is directed opposite the magnetic field. The rotor then turns through one-half revolution. This process is repeated to cause the rotor to turn steadily at 3600 rev/min. (a) Find the maximum torque acting on the rotor. Tmax=[ N-m (b) Find the peak power output of the motor. Pmax= w (c) Determine the amount of work performed by the magnetic field on the rotor in every full revolution. W = J (d) What is the average power of the motor? Pavg= W

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Magnetic Moment

The magnetic moment is defined as the alignment of a magnet and its strength when the magnet is creating a magnetic field. There are number of examples of the magnetic moment, few are a current carrying conductor in the form of coil, elements at microscopic levels like electrons and many more.

Question

The rotor in a certain electric motor is a flat, rectangular coil with 88 turns of wire and dimensions 2.50 cm by 4.00 cm. The rotor rotates in a uniform magnetic field of 0.800 T. When the plane of the rotor is perpendicular to the direction
of the magnetic field, it carries a current of 9.9 mA. In this orientation, the magnetic moment of the rotor is directed opposite the magnetic field. The rotor then turns through one-half revolution. This process is repeated to cause the
rotor to turn steadily at 3600 rev/min.
(a) Find the maximum torque acting on the rotor.
Tmax=
N-m
(b) Find the peak power output of the motor.
Pmax =
W
(c) Determine the amount of work performed by the magnetic field on the rotor in every full revolution.
W =
(d) What is the average power of the motor?
Pavg =
W

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