A grinder motor is designed to operate at a current of 5 a and at a p.D. Of 200 v. What resistance must be connected in series with the motor so as to maintain the rated current when it is operated on a 220 v line?
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I have answer based on the values
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Resistance of 44ohm
Following in a picture...
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ssramgovind200p2yitb:
44-40 = 4ohm
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