Question

11. Electric doorbell works on the principle
of *
(a) Chemical effect of current
(b)Heating effect of current (c)Magnetic effect of current​

Answer 1

Answer:

c)  electromagnet effect of current

Explanation:

Answer 2

Explanation:

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.