Two charged concentric spherical shells have radii of 11.0 cm and 14.0 cm. The charge on the inner shell is 3.50 ✕ 10−8 C and that on the outer shell is 1.60 ✕ 10−8 C. Find the magnitude of the electric field at the following points.

The magnitude of the electric field are and

Explanation:

Given that,

Radius of inner shell = 11.0 cm

Radius of outer shell = 14.0 cm

Charge on inner shell

Charge on outer shell

Suppose, at r = 11.5 cm and at r = 20.5 cm

We need to calculate the magnitude of the electric field at r = 11.5 cm

Using formula of electric field

Where, q = charge

k = constant

r = distance

Put the value into the formula

The total charge enclosed  by a radial distance 20.5 cm

The total charge is

Put the value into the formula

We need to calculate the magnitude of the electric field at r = 20.5 cm

Using formula of electric field

Put the value into the formula

Hence, The magnitude of the electric field are and

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force