Question

Answer the following questions [ Long answer type ] :-
1. Five point charges, each of value $\sf +q$ are placed on five vertices of a regular hexagon of side L. What is the
magnitude of the force on a point charge of value $\sf -q$ placed at the centre of the hexagon?
2. A particle of charge q and mass m moves rectilinearly under the action of an electric field, where $\sf E = A - Bx$ , $\sf B$ is a positive constant and $\sf x$ is a distance from the point, where the particle was initially at rest.
Calculate a. Distance travelled by the particle till it comes to rest.
b. Acceleration at the moment.
3. The electrostatic force between two charges is 200 N. If someone increases 10 % charge on one of the charges and decreases 10% charge on the other charge while separation between them remains unchanged. What is the new electrostatic force between them?

Do not spam or copy!​

Answer 1

Refer to the attached file!

2a5b65bdd294ee464f3b0f30e8d7481b.pdf