You have two electromagnets A and B having 25 turns and 45 turns respectively.
A.Which electromagnet will be stronger if same amount of electric current flows through them? Why?
B.Give any two applications of electromagnet.
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B.Electric bells and buzzers. Loudspeakers and headphones. Actuators such as valves. Magnetic recording and data storage equipment: tape recorders, VCRs, hard disks.
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