Question
Distinguish between the following. An Open Switch and A Close Switch.
✓
Answer
|
S. No.
|
Cell
|
Battery
|
|
$(i)$
|
An open switch does not allow current to pass through the circuit.
|
A close switch allows current to pass through the circuit..
|
|
$(ii)$
|
The bulb does not glow when switch is open.
|
The bulb glows when the switch is closed.
|
|
$(iii)$
|
It is represented as.
 |
It is represented as.
 |
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Rahul was a student of Class VII. His father purchased a new bicycle for him on his birthday. After few months, he found that the cycle chain and even the handle gets rusted. His father advised him to apply a coating of paint to the cycle and not to keep it in the open in future.
Now, answer the following Questions:
Now, answer the following Questions:
- Why his cycle gets rusted?
- What do you mean by rusting of iron?
- What values are shown by Rahul’s father?
Salma takes $15$ minutes from her house to reach her school on a bicycle. If the bicycle has a speed of $2\ m/s,$ calculate the distance between her house and the school.
→Asha went to visit her grandfather in his village. He was having a serious discussion with his fellow members regarding the productivity level of crops for present year. They all were worried about how to increase the productivity of crop Asha listened to this and then suggested to the group that the reason may be decreased level of minerals in soil. She told her grandfather to plant crops like pulses, gram, beans, etc., for a year then follow with regular crops. This will increase the crop productivity?
- What will you name the process suggested by Asha? Why is there decrease in crop productivity?
- What are noted benefits of this process? Will the results be as what Asha expressed?
- What values are shown by Asha?
Give an example of a chemical reaction for each of the following situations
(i) A change in colour is observed.
(II) A gas is evolved.
(III) Sound is produced.
(i) A change in colour is observed.
(II) A gas is evolved.
(III) Sound is produced.
Outline your role as an active citizen in relation to sanitation.
During a field trip, some students visited an agricultural farm and saw a few birds eating earthworms. They enjoyed the scene and then they also started picking and killing the earthworms for pleasure. Seeing the crowd of students in a corner, the teacher rushed to them to see the matter and objected to their action. Anshul, one of the student asked the reason. Teacher smiled and explained him that an earthworm living in the soil is very beneficial for farmers. Anshul wondered whether there were other organisms also in the soil. The teacher appreciated him and explained.
- Mention the importance of earthworm.
- List some organisms living in soil.
- What are the values shown by Anshul?
The phenomenon of cloud formation, rain, storm and cyclone are inter linked. Do you agree? If yes, give a flow chart that explain this relation.
Define oral rehydration solution and when is it given to the patient? How can you prepare ORS at home?
Explain the differences between heat and temperature.
How does sexual reproduction take place in flowering plants?