a) What happens if the switches in figure A and B are turned 'ON'?
b) what is the difference in magnetic strength acquired between the two nails?
c) what happens to the magnetic strength received by both nails if the switches in figures A and B are turned off? Why?
d) write any 2 methods to increase the strength of the electromagnet.
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a) When switches in figure A and B are turned on, there is movement of current through the circuit and the coil around the respective soft iron and steel core. This resembles a solenoid (or an electromagnet). There will be development of magnetic field once switch is closed.
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Explanation: a) When switches in figure A and B are turned on, there is movement of current through the circuit and the coil around the respective soft iron and steel core. This resembles a solenoid (or an electromagnet). There will be development of magnetic field once switch is closed.
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