Maxwell's Equations, Electromagnetic Waves, Displacement Current, & Poynting Vector - Physics

This physics video tutorial provides a basic introduction into maxwell's equations and electromagnetic waves. Maxwell's 4 equations include gauss' law for electric fields and magnetic fields, Ampere's law for magnetic fields, and Faraday's Law for electric fields. The basic idea is that a magnetic field can be produced from a changing electric field and a changing magnetic field can induce an electric field. This video explains how to calculate the displacement current between the plates of a parallel capacitor using the permittivity of free space and the rate at which the electric flux inside a capacitor changes. The electric flux is the product of the electric field and the area. The displacement current is also equal to the capacitance multiplied by the rate at which the voltage across the capacitor is changing. This video contains practice problems on electromagnetic waves which consist of electric fields and magnetic fields. The electric field is equal to the magnetic field multiplied by the speed of light. This video also describes how to calculate the magnitude of the poynting vector labeled S which has the units of intensity in w/m^2. S represents the energy transfer per unit area per unit time. This video explains how to calculate how much energy can be transferred from electromagnetic radiation. It also explains how to calculate the energy density of electric fields and the energy density of magnetic fields. This video on electromagnetic waves contain plenty of examples and practice problems.

RC Circuits - Capacitors & Resistors:

RL Circuits - Inductors & Resistors:

Inductive Reactance:

Capacitive Reactance:

Impedance:

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Series RLC Circuits:

Parallel RLC Circuits:

Resonant Frequency of LC Circuits:

AC Circuits - Review:

Maxwell's Equations & EM Waves:

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Law of Reflection - Geometric Optics:

The Mirror Equation:

Refraction of Light:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[blaufeyson]

Hello!
I just wanted to thank you for your amazing work.
You are a better teacher than most college professors.
THANK YOU!

[mastercooker]

I just realized that I missed this chapter for homework and am now trying to frantically complete all of it plus another chapter in one day. Your video helps so much. Idk why teachers don't teach this this way, it makes so much more sense like this.

[erikmachado]

Once again my GOAT comes through. You have been helping me so much since like trig haha.

[TheJProductins]

Do you have a playlist of the electromagnetic course ? I'm taking it in Spring ! If not could you point me to the first concept I should learn?

[connormontgomery]

Good video, the only thing is that I wish you used some example problems where we need to use the equations as they're written using limits of integration

[Hhoang]

This video should be added to your Physic playlist

[harshd]

You're so underrated, lot's of love from India!!!!❤

[jimmykodwoessel]

How do you differentiate between average and total power (ref? Q11) because on first glance I thought the 500W was the total power so I had to find ½ of that as average power before dividing by area

[BrentLeVasseur]

I am pretty sure that the transfer of energy between two plates in a capacitor is through dielectric induction, which is a form of longitudinal wave (not a hertzian wave), which means there is NO electromagnetic field generated. The only time you have an electric field is when you have a hertzian waveform. An example of a longitudinal electromagnetic waveform is one that is generated between the torus and the Earth in a Tesla coil. Again there is no magnetic field generated from the longitudinal wave. The reason for this is the longitudinal wave vibrates in the same direction as it travels, where is a Hertzian wave vibrates at a 90 degree angle from the direction of the wave.

[kristifrroku]

Quite a difficult course...But the most beautiful for me.

[Emgdnm]

1:48 Isn't E the same as D just substituting one equation for EMF for another?

[dunianabi]

Is there any way you can do the same video but with trig??

[nasserBack]

Do u have anything on Maxwell’s relations (thermodynamics) ? Thanks

[Matthew-irwi]

Can you make a video on non permissible values of trig identities

[inaykarakus]

You are an amazing soul mate thank you so much

[mrgoldie]

In a magnetic field, the poles are Siamese twins, while in an electric fields, the poles are not.

[Frankortyfg]

E=(6.8 x 10^6 - 8.4 x 10^5 t)where t is in sec sir please tell me what its reprents

[douglashagan]

Studies vectors vertices electromatic energy

[mustafabaydaroglu]

permeability of free space is not 8.85 but 4pi*10^-7

[simonruszczak]

They're Heaviside's Equations.