P4 ELECTROSTATICS

Question 1

Principle of charge quantisation

Answer 1

All charges in the universe consist of an integer multiple of the

charge on one electron.

Question 2

principle of conservation of charge

Answer 2

The net charge of an isolated system remains constant during

any physical process.

Question 3

polarisation of charges

Answer 3

The partial or complete polar separation of positive and negative electric

charge in a system.

Question 4

coulombs law

Answer 4

The magnitude of the electrostatic force of attraction or repulsion exerted by one
point charge (Q1) on another point charge (Q2) is directly proportional to the product of the
magnitudes of the charges and inversely proportional to the square of the distance (r)
between their centres.

Question 5

electric field

Answer 5

It is a region of space in which an electric charge experiences a force.

Question 6

electric field (strength) at a point

Answer 6

It is the electrostatic force experienced per unit positive point

charge placed at that point.