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.
3. State the basic property of electric charges. Describe an experiment to prove this property.
8.
E. Answer the following in detail.
4. What is lightning? How is it caused?
5. Describe the working of an electric fuse.
6. How is a fuse connected in an electric circuit? What is its role?
7. Describe the role of switches and electric meters in houses.
8. Explain three electrical hazards.
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