Advertisements
Advertisements
प्रश्न
Would the bulb glow after completing the circuit shown in Figure if instead of a safety pin we use an eraser?
Advertisements
उत्तर
Erasers are bad conductors of electricity. They do not conduct electricity. The circuit becomes an open circuit. Hence, the bulb will not glow if a safety pin is replaced with an eraser.
संबंधित प्रश्न
What is the purpose of a switch in a circuit?
The following diagram shows three lamps and three switches 1, 2 and 3 connected with two cells.
- Name the switch / switches to be closed so as to light all the three lamps.
- How are the lamps connected: in series or in parallel?
How should the electric lamps in a house be connected so that the switching ON or OFF in a room has no effect on other lamps in the same building?
What is meant by ‘MCB’? Which part of the domestic electric circuit does it replace?
What are ‘dual switches’? Mention their one main use.
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
In the circuit shown in the following figure, when the switch is moved to ‘ON’ position,
Why is the switch put in the live wire?
What precaution do you take while handling a switch?
Name the wire to which a switch is connected.
