Advertisements
Advertisements
प्रश्न
When current is switched ‘on’ in a room heater, it ______.
Advertisements
उत्तर
When current is switched ‘on’ in a room heater, it becomes red hot and emits heat.
Explanation:
The working of a room heater is based on the heating effect of electric current, which converts electrical energy into heat energy to warm the room.
APPEARS IN
संबंधित प्रश्न
Why is a series arrangement not used for connecting domestic electrical appliances in a circuit?
Explain why, the current that makes the heater element very hot, only slightly warms the connecting wires leading to the heater.
Name the material which is used for making the filaments of an electric bulb.
What is overloading?
Define fuse.
The heating element of an electric iron is made up of:
Assertion: Bending of wire decreases the resistance of the electric wire.
Reason: The resistance of a conductor depends on length, thickness, nature of material and temperature of the conductor.
Unscramble the following words:
SFEU
What are the factors affecting heating effect of electric current?
The graph of voltage vs current for four different materials is shown below.
Which of these four materials would be used for making filament of bulb?
