7 - electric fields

Question 1

Electric field of a charge

Answer 1

Space around the charge in which electric field due to charge is experienced

Question 2

Coulomb’s law

Answer 2

Any two product charges exert an electric force on each other that is proportional to the product of the charges and inversely proportional to the square of their separation

Question 3

Electric field strength

Answer 3

Force per unit positive charge

Question 4

Electric potential at a point

Answer 4

Work done in bringing a unit positive charge from infinity to that point

Question 5

Potential difference between two points

Answer 5

Potential difference between 2 points A and B from the isolated charge Q is the work done in taking a unit positive charge from B to A.

Question 6

Equipotential surface

Answer 6

Surface where electric potential is constant