Question

A charged sphere of mass 2g is freely suspended in an electric field vector 5*100000j N/C.
Calculate the number of excess charged particles in the sphere

Answer 1

Answer on Question #75148-Physics-Electromagnetism

A charged sphere of mass 2g is freely suspended in an electric field vector 5*100000j N/C.

Calculate the number of excess charged particles in the sphere

Solution

For the equilibrium:

$$m g = q E$$

The charge of sphere is

$$q = n e.$$

The number of excess charged particles in the sphere is

$$n = \frac {m g}{e E}$$ $$n = \frac {(0 . 0 0 2) (9 . 8)}{(1 . 6 \cdot 1 0 ^ {- 1 9}) (5 0 0 0 0 0)} = 2 4 5 0 0 0 0 0 0 0 0 0.$$

Answer: 245000000000.

Answer provided by https://www.AssignmentExpert.com