Question

What is the effect of eddy currents in the aluminium disc?

a.

varies by a factor of twice the disc length

b.

independent of the disc speed

c.

varies by a factor of four times the disc size

d.

proportional to the disc speed

Posted under Measurement of Power Electrical Measurement and Instrumentation

Answer: (d).proportional to the disc speed

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Q. What is the effect of eddy currents in the aluminium disc?
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