Question

In the electrical method of magnetisation, a strong electric current is used which is ___________.

• A. A direct current $\left(DC\right)$
• B. An alternating current $\left(AC\right)$
• C. Can be either $AC$ or $DC$
• D. It depends on whether the magnet is to be permanent or temporary

Answer 1

The correct option is A A direct current $\left(DC\right)$

For electrical method of magnetisation, a direct current flowing into a solenoid produces a magnetic field inside the coil that is uniform in strength and direction.