Question

two electrons are placed at some distance in air.compare the gravitational force and electro static force between them.​

Answer 1

Answer:

Show that the electrostatic force is much greater than the gravitational force for the electrons separated by a certain distance.

Charge on the electron =1.6×10

−19

C

Mass of the electron =9.1×10

−31

kg

Gravitational constant =6.67×10

−11

Nm

2

kg

Answer 2

Answer:The gravitational force of attraction between the two electrons is very much less than that of the electrostatic repulsive force..

Explanation:

Gravitational force of electrons placed 1 cm away

F = Gm1m2/ r^2

= (6.67×10^-11 Nm^2kg^-2)× (9.1×10^-31kg)^2 /(10^-2m)^2

= 5.5 × 10^-67 N

__________

___________

However an electron is found to repel another electron at 1 cm with a force of 2.3 ×10^-24 N by equation

F= 9×10^9 × q1q2/ r^2

So electrostatic force is greater than gravitational force, while the are repulsive and attractive respectively...