1_a circular coil of radius 40mm is found to produce a field of 12.1×10^-6T at a point 30mm along it's axis. what is the electromagnetic moment?
2_a long horizontal wire carries a current of 24A .a rectangular loop of 50cm by 18cm having the long side parallel to the wire carries a current 16A .what is the magnitude and direction of the resultant force exerted by the magnetic field of the wire on the loop?
3_two long straight conductor place 100cm apart carrying current 10A and 5A respectively in the same direction, find the position of line of neutral point in their resultant magnetic field.?
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Asked by ameh on 20th February, 2019
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