Question

find the charge on 9.1 kg of electrons​

Answer 1

Answer:

q=ne

Explanation:

q is the charge in coulomb, n is the number of electrons and e is a charge of single electron (quantum charge) .

1 electron has a mass of 9.1 * 10^-31 kg . Then 75kgs of electron has has 8.24 * 10^31 electrons roughly.

q=8.24*10^31*1.6*10^-19 C

q=1.31*10^13 C

Answer 2

We know the formula

$q = ne$

where q is the charge in coulomb, n is the number of electrons, e is the charge on one electron

Number of electrons in 9.1kg

$= \frac{1 \times 9.1}{9.1 \times {10}^{ - 31} }$

$n = {10}^{31}$

$e =1.6 \times {10}^{ - 19}$

$q = {10}^{31} \times 1.6 \times {10}^{ - 19}$

$q = 1.6 \times {10}^{12} coulomb$

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