E-fields

Question 1

Coulomb’s law

Answer 1

The force acting between two charged bodies is inversely proportional the the square of the distance between them and directly proportional to the product of the two charges

Question 2

Electric field strength

Answer 2

Force per unit positive charge. The direction of an electric field at a point is the direction of force on a positive charge at that point.

Question 3

Field strength in uniform field

Answer 3

E=V/d

Question 4

Electric field strength

Answer 4

F= EQ

Question 5

E-field inside a charged sphere

Answer 5

There is zero e-field in a charge field

Question 6

Electric potential

Answer 6

The electric potential at a point is defined as the work done moving unit positive charge from infinity to that point.scalar J/C or V

Question 7

Potential V at a distance from Q

Answer 7

V= Q/4πεor

Question 8

Equipotentials

Answer 8

These are points of equal potential at right angles the the e field lines
E= φv/φr