Apositive test charge q is released from rest at distance r away from a charge of +q and a distance 2r away from a charge of +2q.
how will the test charge move immediately after being released?

a. to the left
b. to the right
c. stay still
d. other

The test charge will move to the left side after being released.

Explanation:

Given that,

Test charge = q

First charge = Q

Second charge = 2Q

Distance of point charge from first charge = r

Distance of point charge from second charge = 2r

Let the charge Q placed at left side and charge 2Q placed at right side.

We need to calculate the force due to first charge

Using formula of force

Put the value into the formula

...(I)

We need to calculate the force due to second charge

Using formula of force

...(I)

Divided equation (I) by equation (II)

Hence,The test charge will move to the left side after being released.

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