Question

The charge on a proton is 1.6×10^-19 c. how many protons will together carry a charge of 2c ?​

Answer 1

$\huge \text{\underline{ANSWER}}$

Number of protons carrying 2C charge = 1.25 * 10¹⁹ protons

$\huge \text{\underline{EXPLANATION}}$

We know that,

Q = ne

where,

Q is the total charge

n is the number of protons/electrons

e is the charge of one proton/electron

In the given question,

Q = 2C

e = 1.6 * 10⁻¹⁹ C

n = ?

Substituting these values we get,

2 = n * 1.6 * 10⁻¹⁹

n = 2 / 1.6 * 10⁻¹⁹

n = 1.25 * 10¹⁹ protons