When electric current is passed through an incandescent bulb, the bulb gives light. Identify the proper reason.

Electric effect of current

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Chemical effect of current

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Heating effect of current

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Magnetic effect of current

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Solution

The correct option is C
Heating effect of current

The electric current in a metal wire is nothing but the flow of electrons. When these electrons pass through the filament of the bulb, it produces heat and thereby light energy. Hence, this heating effect of electric current is responsible for the glow.

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Similar questions

Q. An electric fuse works on the:

(a) chemical effect of current
(b) magnetic effect of current
(c) lighting effect of current
(d) heating effect of current

Q. Question 4

When the electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates

(a) the chemical effect of current.
(b) the heating effect of current.
(c) the magnetic effect of current.
(d) the lightning effect of current.

(a) Name three types of substances in which an electric current can produce a chemical effect.
(b) State some of the characteristics of chemical changes brought about by the chemical effect of electric current.
(c) Why does an electric bulb glow when a current passes through it ?

Q. Question 1
Illustarte the following effects of electric current:
(a) Heating effect
(b) Chemical effect
(c) Magnetic effect

An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the :

(a) chemical effect of current

(b) heating effect of current

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