Question

12) An electric lamp glows 1 point
due to,
a) Heating effect
b) Magnetic effect
c)Chemical effect
d) Physical effect​

Answer 1

Answer:

Its answer is (D) PHYSICAL EFFECT

Explanation:

The filament of a electric bulb glows because of the heating effect of electric current. As the current passes through the bulb it heats the filament which gives off light.

Answer 2

Required Answer:-

Electric lamp glows due to:

• Heating effect (D)

Electric lamp is a light giving appliance which glows when the current is passed through the filament. The filament is generally made up of metals with high melting point like Tungsten which doesn't melt even when a lot of current passes through it$.$

☪️ More such appliances:

Works on Heating effect:

• Electric heater
• Electric iron
• Electric kettle
• Filament lamps (as in above)

Works on magentic effect:

• Electric bell
• Electric fan
• Radio & Television

Some appliances are based on more than two different effects of electric effect.