D. Answer the following in short.
1. How is a body charged by friction? 10+
2. Why does a glass rod get positively charged when rubbed with silk?
3. Explain why the leaves of a negatively charged electroscope collapse if a positively charged glass
rod is brought near the disc of the electroscope.
4. Define charging by conduction.
5. What is meant by earthing of an electrical device?
6. How is a short circuit caused?
7. What is meant by overloading of an electric circuit?
8. List two precautions while handling electricity.
E. Answer the following in detail.
1. Describe the structure of an atom with the help of a diagram.
2. What is a conductor? Explain why a conductor does not produce static electricity
stato the hasis property of electric charges. Describe an experiment to prove this property.
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