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प्रश्न
How charges are produced by friction?
टीपा लिहा
उत्तर
Rubbing certain materials with one another can cause the build-up of electrical charges on the surfaces. So charges are produced by friction.
Example:
Combing hair charges are transferred from the hair to the comb due to friction.
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Flow of Charges (Electrons) Between Conductor
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संबंधित प्रश्न
Define the term current.
Match the following.
| Two similar charges | acquires a positive charge |
| Two dissimilar charges | prevents a circuit from overheating |
| When glass rod is rubbed with silk | repel each other |
| When ebonite rod is rubbed with fur | attract each other |
| Fuse | acquires a negative charge |
Give a reason for the following.
When a comb is rubbed with dry hair it attracts small bits of paper.
The material which allows electric current to pass through it is called ______.
Flow of per unit time is called current ______.
Before the discovery of electrons, it was considered that electric current is due to the flow of ______ charges.
What are electrodes?
