Magnetic Effects of Electric Current
Your child will reveal the magnetism hidden inside every electric current and meet the machines it drives. This chapter generally brings about five marks, often a field-direction or motor-principle question. Learners map magnetic field lines around a straight wire, a loop and a solenoid, apply right-hand rules for direction, build an electromagnet, explain Fleming left-hand rule through the turning coil of an electric motor, reverse the idea through electromagnetic induction into the electric generator, and close with household circuits, fuses and earthing that keep domestic supply safe. Three
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