Solve all the 12 question
Answers
Answer:
See the attachment
Explanation:
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Answer:
1. Copper rod
Charging by friction is used to charge only non-conducting materials. As copper is a conductor it cannot be charged easily.
2. The glass rod is positively charged while the cloth is negatively charged.
3. (a) False, like charges attract each other.
(b)True.
(c)False, it can protect a building by transferring the electricity to earth.
(d)True.
4. An electric discharge is created while removing a sweater which produces a crackling sound.
5. It is because the charge gets transferred to our body.
6. It is measured on the Richter scale. Yes, the seismograph can record the earthquake. No, it won't cause much damage.
7. Take shelter in a building
Do not take a bath during lightning
Do not use electronic appliances
8. It is because like charges repel each other and unlike charges attract each other.
9. An electroscope is used to detect a charged body.
10. Kashmir, Rajasthan and Gujarat.
11. Move to a open space
Drop to the ground
If you are in a vehicle stay inside it
Stay away from tall structures
12. No, because metallic instruments are more prone to be hit by lightning strikes. Instead we can carry a raincoat.
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