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2 years ago

How many electrons are there in 3.5 x 10" C?

Physics

1 answer:

Masja [62]2 years ago

4 0

Answer:

$2.19\cdot 10^{20}$ electrons

Explanation:

I assume you mean:

How many electrons are there in $3.5\cdot 10^{1}C$ ?

Solution:

The charge of one electron is (in magnitude)

$e=1.6\cdot 10^{-19}C$

The charge in this problem is

$Q=3.5\cdot 10^{1} C$

So, we can find how many electrons are in this charge by simply dividing the total charge by the charge of one electron:

$n=\frac{Q}{e}=\frac{3.5\cdot 10^{1}}{1.6\cdot 10^{-19}}=2.19\cdot 10^{20}$

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Answer:

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