Physics
Grade-9
Easy
Question
If you rub a glass rod with a piece of silk which of these is not true?
- Rod becomes positively charged
- Silk has become negatively charged
- Friction causes charges in both
- Glass attracts more protons
Hint:
The glass rod does not attract protons.
The correct answer is: Glass attracts more protons
The statement that says the glass rod attracts protons more is incorrect.
- When the glass rod is rubbed with silk, the electrons from the glass rod move to the silk.
- As a result, the silk becomes negatively charged and the rod remains positively charged.
- The rod becomes positively charged as the protons remain in the rod and the rod does not attract protons.
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