M

Mr. Dubey • 52.30K Points
Coach 

Q. A common rule of thumb to use for current required in circular magnetisation:

(A) 1000 amps/25mm of diameter
(B) 1000 ampere turns/25mm of diameter
(C) 1000 amps/25mm of prod spacing
(D) None of the above
Correct : Option (B)

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