When a biro pen rubbed on a dry silk cloth is moved very close to...
PHYSICS
JAMB 1994
When a biro pen rubbed on a dry silk cloth is moved very close to a piece of paper on a dry table, the pen is found to pick up the paper. This is because
- A. both the pen and the cloth are magnetized
- B. the pen is magnetized but the cloth is not
- C. the pen is charged while the cloth is magnetized
- D. both the pen and the cloth are charged
Correct Answer: D. both the pen and the cloth are charged
Explanation
They are all charged either positively or negatively
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