Question

The strength of an electromagnet depends on _______ and _______ flowing in the coil.

• A. the number of turns in the coil
• B. electric current

Answer 1

Electromagnet:

1. An electromagnet is a temporary magnet.
2. When an electric current is allowed to p[ass through it, one end behaves like a north pole and the other end like a south pole.
3. Polarity of the ends depends on the direction of the current.
4. As the current gets off, magnetism disappears.
5. Mag. field of an electromagnet is directly proportional to the strength of the current flowing in it.
6. Mag. field of an electromagnet is directly proportional to the number of turns in it.

Hence, the strength of an electromagnet depends on the number of turns in the coil and the electric current flowing in the coil.