Question

3. Differentiate between Magnetic induction and Electrical method​

Answer 1

Answer:

The electric field line induces on a positive charge and extinguishes on a negative charge, whereas the magnetic field line generates from a north pole and terminate to the south pole of the magnet. The electric field lines do not form a loop whereas the magnetic field lines form a closed loop.

Answer 2

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A steel bar placed inside the coil for a short while becomes magnetized due to magnetic induction from the solenoid. The polarities of the magnet depend on the direction of current flow. Magnetization by electric current method creates more powerful magnets than other magnetization methods such as stroking.