Hazards of Electricity

Q.

Paheli does not have a night lamp in her room. She covered the bulb of her room with a towel at the night to get dim light. Has she taken the right step? Give one reason to justify your answer.

Q.

The top pin of a three-pin plug if for

1. live wire

2. Earth wire

3. Neutral wire

4. any of the above

Q.

How can you prevent the wastage of electricity in your homes?

Q. Which of the following precautions need not be taken while using electric gadgets/appliances/circuits?

1. We should never turn the switch in ON position.
2. We should never touch a lighted electric bulb connected to the mains.
3. 
   

   We should never use just any wire or strip of metal in place of a fuse.

4. We should never experiment with the electric supply from the mains or a generator or an inverter.

Q.

Why do we cover plug pinholes which are within the reach of children with cellotape or a plastic cover when not in use?

Q.

Question 15

Why do we cover plug pin holes which are within the reach of children with cellotape or a plastic cover when not in use?

Q.

Question 15

Why do we cover plug pin holes which are within the reach of children with cellotape or a plastic cover when not in use?

Q.

Draw a diagram of the ring main circuit for domestic distribution of electric power.

Q.

Question 5

Which of the following precautions need not be taken while using electric gadgets/appliances/circuit?

(a) We should never touch a lighted electric bulb connected to the mains

(b) We should never experiment with the electric supply from the mains or a generator or an inverter

(c) We should never use just any wire or strip of metal in place of a fuse

(d) We should never turn the switch in ON position

Q. Paheli does not have a night lamp in her room. She covered the bulb of her room with a towel in the night to get dim light. Has she taken the right step? Give one reason to justify your answer.

Q. Paheli does not have a night lamp in her room . She covered the bulb of her room
with a towel in the night to get dim light. Has she taken the right step? Give one
reason to justify your answer.

Q. You know that electrical energy can be converted into many other forms. Write down some examples.