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Question
Electrons move from ______ potential to ______ potential.
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Solution
Electrons move from higher potential to lower potential.
Explanation:
- Electrons are negatively charged particles, and they move toward a region of higher positive potential (lower electron potential).
- This is opposite to the conventional current flow, which is from higher potential to lower potential.
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Exercise.
Rubbing a comb on hair makes the comb get – 0.4C.
- Find which material has lost electron and which one gained it.
- Find how many electrons are transferred in this process.
If an electron is added in excess to an atom then the atom is ______ charged.
The excess of electrons makes an object negative and ______ of electrons makes it positive.
A comb rubbed with hair and brought near pieces of paper attracts them, because both comb and paper get similarly charged.
What is the charge of one electron?
Define electric field.
