Electric fields & Coulomb's law

Question 1

Definition

Electric charge

Answer 1

Property of an object that give rise to a force on the body when in an electric field

Question 2

Definition

Electric field

Answer 2

A region where charged object experiences a force

Question 3

Definition

Electric field strength

Answer 3

Force per unit charge exerted on a stationary positive charge at that point

Question 4

Formula

Electric field strength of a charge equals

Answer 4

Force / Charge

Question 5

Formula

Strength of a uniform field equals

Answer 5

-Voltage / distance of seperation

Question 6

Definition

Coulomb’s law

Answer 6

2 point charges exert an electrical force proportional to the product of their charges and inversely proportional to the square distance.

Question 7

Formula

Coulomb’s law force equals

Answer 7

Charge1 * Charge2 / (4pi * const * distance^2)

Question 8

Formula

Electric field strength of a radial field equals

Answer 8

Charge / (4pi * const * distance^2)

Question 9

Formula

Electric potential energy equals

Answer 9

Charge * Voltage

Question 10

Formula

Electric potential in a radial field equals

Answer 10

Charge / (4pi * const * distance)

Question 11

Definition

Electric potential

Answer 11

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

Question 12

Formula

Potential energy of 2 point charges equals

Answer 12

Charge1 * Charge2 / (4pi * const * distance)

Question 13

Formula

Potential difference between 2 points equals

Answer 13

(Charge / 4pi * const) * (1 / change in distance)