Inductive Reactance, Impedance, & Power Factor - AC Circuits - Physics

This physics video tutorial provides a basic introduction into the inductance reactance of an inductor toward an AC signal. The inductive reactance increases with frequency and inductance. This video explains how to calculate the inductance reactance of a RL circuit as well as the impedance and power factor. It explains how to determine the rms current flowing in the ac circuit. This video provides 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:

[Tommy-bmbm]

Top bloke this guy. His videos are better than my college.

[PunmasterSTP]

Inductive reactance and impedance? More like "Informative lectures that are simply the best!" 👍

[cloviscareca]

Dude, this video explain everything I've always wondered. Thank you so much

[thefoodcan]

My professor is awful at teaching and your videos have gotten me through the semester so far, thanks.

[irishchocolate]

It is interesting. In practically all your videos on circuits, you use no trig or complex number representation in calculating power factor, power factor correction, phase angle etc.
I go to Engineering Academy and when he is covering some of the same topics he is using trig and complex numbers to do the calculations.

[shreebohara]

This is the best video i have ever seen❤️❤️.
By spending 2000 dolars for coaching and couldn't understand a thing.

[offspringfan]

In my 3rd semester of Mechatronics. Enjoy your video bro!

[ltmcmuffinz]

I really appreciate your videos, you've been an amazing help in my schooling

[DorothyEnomb-zqti]

My best teacher, your even better than my teaher at school💯❤️

[TheRealRade]

You could also calculate the power consumed by the circuit with a third solution by squaring the voltage across the resistor then dividing by the resistor!

P=[(Vr)^2]/R
P=[(9.585V)^2]/50 ohms
P=1.837W

[emmanuellerigorm.rubiano]

Sir, Thanks! Means a lot! You deserve it!

[MARK-jovw]

Thank you!i have a electrical Principal exam tomorrow 💪

[RAndrewNeal]

What I want to learn is where these formulas came from, not just how to use them.

[myintnaing]

Sir. Think. for. such. a. good. teaching

[mahanth]

The video examples were great! However, wouldn't the Irms = Vrms/Z, since Vs != Vrms and Vrms is found by taking the average value of the function sin(theta) over the interval from [0, 2pi]. Therefore, Vrms = sqrt(ave(Vm^2cos^2(wt)) = sqrt(Vm/2) = Vm/sqrt(2) = 12/sqrt(2) = 6sqrt(2). Doing the calculations for rms current, Irms = Vrms/Z = 6sqrt(2)/62.2 = 0.136A

[manasijvs]

sometimes its like this guy knows everything

[djandcj]

Great explanation wish I had it 10 years ago 😂

[jackwithrington]

A series circuit consists of a capacitor and a coil connected to a 120 Volt, 60 HZ supply with the following values:
1. The coil has a resistance of 30 Ohms
2. The coil has an inductive reactance of 40 Ohms 3. The capacitor is 15 microfarads
The circuit current is Amps.
A) 4.00 B) 2.40 C) 0.957 D) 0.857


please help

[klipk]

In the first circuit, do we assume that the 12V source is labelled as Vpeak?

[yanavassilyev]

why isn't voltage across the inductor not referred to as the induced emf as it was in DC? and doesn't use -L*dI/dt? would the inductor try to counteract the falling and rising of the current during alternation in the same way?