Basic Concepts

Question 1

E is the symbol for what?

Answer 1

Electric Field Intensity

Question 2

D is the symbol for what?

Answer 2

Electric Flux Density

Question 3

H is the symbol for what?

Answer 3

Magnetic Filed Intensity

Question 4

B is the symbol for what?

Answer 4

Magnetic Flux Density

Question 5

What is permeability?

Answer 5

Permeability is the measure of the ability of a material to support the formation of a magnetic field within itself.

Question 6

What is Permittivity?

Answer 6

The ability of a substance to store electrical energy in an electric field.

Question 7

Name the 3 Equations for Vector (Bold A [A]), Magnitude (A) and Direction (a)

Answer 7

Vector: A = aA
Magnitude: A = |A|
Direction: a= A/A

Question 8

Name the 3 co-ordinate systems and describe an example point eg P(x,y,z)

Answer 8

Cartesian: P(x,y,z)
Cylindrical: P(r,Φ,z)
Spherical: P(r,Φ,Θ)

Question 9

Equation for speed of light using permettivity and permability?

Answer 9

c = sqrt(ε*μ)^-1