Advertisements
Advertisements
Question
Which of the following precautions need not be taken while using electric gadgets/appliances/circuits?
Options
We should never touch a lighted electric bulb connected to the mains.
We should never experiment with the electric supply from the mains or a generator or an inverter.
We should never use just any wire or strip of metal in place of a fuse.
We should never turn the switch in the ON position.
Solution
We should never turn the switch in the ON position.
APPEARS IN
RELATED QUESTIONS
Three resistors of resistances R1 , R2 and R3 are connected (i) in series, and (ii) in parallel. Write expressions for the equivalent resistance of the combination in each case.
One unit of coulomb is charge of approximately ______ protons or electrons.
Match the following
| 1. | Cell | used to open or close a circuit |
| 2. | Switch | safety device used in electric circuit |
| 3. | Circuit | A complete path for the flow of an electric current |
| 4. | Miniature circuit Breaker | Reset by hand, circuit becomes complete once again |
| 5. | Fuse | A device which converts chemical energy into electrical energy |
Explain the construction and working of an Telephone.
Electrical resistivity of a given metallic wire depends upon
Which of the following solutions will not make the bulb glow in figure?
Which property of a conducting wire is utilised in making an electric fuse?
Why is an electric fuse required in all electrical appliances?
Electricity produced on rubbing is ______.
In an electric bulb, light is produced due to the glowing of
