CIRCUITS

Question 1

What are the changes in an LC circuit?

Answer 1

Harmonic changes of q and i

Question 2

What is displacement current and what does it correct?

Answer 2

Ampere’s law states current creates a magnetic field. However when measuring between plates of capacitor where no current is flowing a magnetic field is present. Change in electric field (flux) gives rise to displacement current between plates of capacitor. No current is actually moving between the plates.

Question 3

What are Maxwell’s equations

Answer 3

Gauss’ law, Gauss’ law for magnetism, Faraday’s law, Ampere’s law

Question 4

What is Lorentz force?

Answer 4

Sum of magnetic force and electric force exerted on a charged particle moving with velocity through electric and magnetic field

Question 5

What did Maxwell discover?

Answer 5

Magnetic fields can be created not only by current but also change in electric flux

Question 6

What do Maxwells equations describe?

Answer 6

Electricity, magnetism and optics

Question 7

How is total power of EM waves through an area described?

Answer 7

Integral over area of poyntings vector