Static electricity and electric fields Quiz
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5 questions, one answer each
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1. A cloth loses electrons when it is rubbed on a rod. What is the charge on the cloth?
- A. Negative
- B. Neutral
- C. Positive
- D. It depends on the rod
2. Two balloons both carry a negative charge. What happens when they are brought close together?
- A. They repel
- B. They attract
- C. Nothing happens
- D. They become neutral
3. Which material is an insulator?
- A. Copper
- B. Aluminium
- C. Polythene
- D. Steel
4. A negatively charged rod is brought near the cap of a charged electroscope and the leaf falls. What is the charge on the electroscope?
- A. Negative
- B. Positive
- C. Neutral
- D. Cannot tell
5. Which describes the electric field between two oppositely charged parallel plates?
- A. Radial lines pointing outwards
- B. Curved lines that cross
- C. No field at all
- D. Uniform parallel lines from positive to negative