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By convention, the charge on an electron is taken as:
AVariable
BNegative
CPositive
DNeutral
Answer & Solution
Correct answer: B. Negative
1. The two particles carry equal and opposite charges.
2. One of them has to be called negative.
3. By convention that is the electron.
_Source: NCERT Class 12 Physics Part I, Chapter 1, Electric Charges and Fields._
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