Will an eddy current brake (Fig. 21–20) work on a copperor aluminum wheel, or must the wheel be ferromagnetic?Explain xxXB (inward)(a)(b)FIGURE 21-20 Production of eddycurrents in a rotating wheel. Thegray lines in (b) indicate inducedcurrent.

In rapid transit car an eddy current brake is used. An electromagnet is used to stop the car which…

Answered: xxX B (inward) (a) (b) FIGURE 21-20…

xxX B (inward) (a) (b) FIGURE 21-20 Production of eddy currents in a rotating wheel. The gray lines in (b) indicate induced current.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.

Question

Will an eddy current brake (Fig. 21–20) work on a copper
or aluminum wheel, or must the wheel be ferromagnetic?
Explain

xxX
B (inward)
(a)
(b)
FIGURE 21-20 Production of eddy
currents in a rotating wheel. The
gray lines in (b) indicate induced
current.

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