4. Which of the following is the reason for the heating of an electric bulb?
a. Heating effect of current
b. Electrical effect of current
c.Musical effect of current
d. Optical effect of current
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Answer:
Option a heating effect of current
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Answer:
a)Heating effect of current..
Or.
Heating..
Explanation:
The electric bulb has a filament called tungsten when electricity passes through this filament, it heats up and glows.
This heat is generated due to the passage of electric current, the drift of electrons due to the current and the resistance it has.
Hence, the heating effect of electric current is responsible for the glow of the bulb in an electric circuit.
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