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An electromagnet has a lifting force of 36 N. If the current through the coil is halved and the number of coils is tripled, the

An electromagnet has a lifting force of 36 N. If the current through the coil is halved and the number of coils is tripled, the lifting force will become

a) 54 N

b) 216 N

c) 24 N

d) 36 N

e) 108N

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