Sir I am ranjeet and tring to make small cylindrical electromagnet approximately of height 0.75 cm and diameter of base 3 mm. I used copper wire to wind iron core. The current flowing is 0.85 amp and voltage across wire is 1 volts to produce the required magnetism. But the problem is that the electromagnets are getting too hot specially the iron core. If someone can suggest me to reduce the heating or some other material to be used as core or winding then it will be very much helpful to me. Thanku in advance!
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