Question

The electric bell works with the help of :
a. Heating effect of current
b. Magnetic effect of current
c. Both (a) and (b)
d. None of the above

Answer 1

Answer:

A bell works with the principle of working of electromagnetism. When the switch is pushed on, the circuit gets completed and the current starts flowing through the U-shaped electromagnet which creates a magnetic field in the core. This attracts the iron armature.

option (b)is correct option

Answer 2

Explanation:

(b) Magnetic effect of current

An electric bell contains an electromagnet, consisting of coils of insulated wire wound round iron rods. When an electric current flows through the coils, the rods become magnetic and attract a piece of iron attached to a clapper. The clapper hits the bell and makes it ring.