The minimum charge on an object is __________.

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Solution

Solution:
We know, charge is always an integral multiple of electronic charge, i.e.,
$Q = \pm n e$
where,
$Q \to$ is the charge on the object
$n \to$ a integer
$e \to$ electronic charge = $1.6 \times 10^{- 19} c o l o u m b$
$∵$ The minimum charge possible on an object is when $n = 1$ ,i.e.,
$Q = e = 1.6 \times 10^{- 19} C$
The minimum charge on an object is $1.6 \times 10^{- 19} c o l o u m b$ .

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