Topic 8:Electric and magnetic fields

Question 1

What is the equation for gravitational field strength ?

Answer 1

g=GM/R^2

Question 2

What is the equation for Electric field strength?

Answer 2

E=KQ/r^2

Question 3

What is the equation for Electrostatic force

Answer 3

Fe=KQQ/r^2

Question 3

What is the equation for Gravitational force

Answer 3

Fg=GMM/r^2

Question 4

What is a Field

Answer 4

A field is an area of space that has an influence (force) on something

Question 5

What is the graphical relationship/ representation of gravitational field strength

Answer 5

inverse square graph as gravity is inversely proportional to the r^2

Question 6

What is flux density

Answer 6

Field strength

Question 7

what is an electric field

Question 8

What is a magnetic field

Question 9

What does a positive symbol signal in an electric field

Question 10

what does a negative symbol signal in a electric field

Question 10

Explain Fleming left hand rule

Question 11

Explain the magic wand experiment in relation to

Question 12

Define capacitance

Answer 12

Capacitance

Question 12

Coulomb’s Law