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Elanso [62]
3 years ago
7

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

Physics
1 answer:
Masja [62]3 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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A current of 0. 82A flows through a light bulb. The charge passed through the light bulb during 94 s is 77.08C

The amount of charge flown for a given period of time determines the current passed through a bulb or electrical body.

The relation between the charge, current and time is given as:

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