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The fact that any observable charge is an integral multiple of the elementary charge $e$ is known as
Aconservation of charge
Bsuperposition of charges
Cquantisation of charge
Dpolarisation of charge
Answer & Solution
Correct answer: C. quantisation of charge
1. Every charge is transferred as whole electrons, so $q = ne$ with $n = \pm 1, \pm 2, \ldots$ and $e = 1.6\times10^{-19}$ C.
2. Charge cannot exist as a fraction of $e$; this is **quantisation of charge**.
3. Conservation refers to total charge being constant; superposition is about adding forces/fields.
_Source: Samacheer Kalvi Class 12 Physics Vol.1, Unit 1 'Electrostatics', §1.1.2 (iii)_
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