Question

The mass of a proton is 1833 times larger than the mass of an electron. When a proton an electron interact with each other the oversized proton’s electric force on the electron is

A.many times smaller than the electric force of the electron on the proton.
B.exactly the same as the electric force of the electron on the proton.
C.many times larger than the electric force of the electron on the proton.
D.negligibly larger than the electric force of the electron on the proton

Answer 1

B. Exactly the same as the electric force of the electron on the proton.

Explanation:

Even if the mass of proton is increased or decreased, the force between electron and proton will remain the same because force is dependent on the charge of the object and distance between them. The force between the charges is independent of their masses. So, even if the mass of a proton is 1833 times larger than the mass of an electron, the force between them will be same.

According to Coulomb's law:

$F = k\frac{q_1q_2}{r^2}$

where,

F is the force

q₁ and q₂ are the charges

r is the distance between the charges