Faraday's & Lenz's Law of Electromagnetic Induction, Induced EMF, Magnetic Flux, Transformers

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7 жыл бұрын

This physics video tutorial explains the concept behind Faraday's Law of Electromagnetic Induction and Lenz's Law using the Right Hand Rule to determine the direction of the induced current and induced emf. Topics such as magnetic flux, self inductance of a solenoid, transformers, and ac generators are also included. This video contains plenty of examples and practice problems.
Magnetism - Review:
• Magnetism, Magnetic Fi...
Faraday's Law of Electromagnetic Induction:
• Faraday's Law of Elect...
Lenz's Law - Induced Current:
• Lenz's Law, Right Hand...
Induced EMF In Moving Conductor:
• Induced EMF In Moving ...
Electric Generators & Induced EMF:
• Electric Generators, I...
______________________________
Counter EMF of DC Motors:
• Back EMF & Counter EMF...
Transformers - Physics Problems:
• Transformers Physics P...
Mutual Inductance & Solenoids:
• Mutual Inductance & So...
Self-Inductance of Inductors & Coils:
• Self Inductance of Ind...
How To Make an Electromagnet:
• How To Make an Electro...
_________________________________
Faraday's & Lenz's Law of Electromagnetic Induction:
• Faraday's & Lenz's Law...
Energy Stored In an Inductor:
• Energy Stored In an In...
RL Circuits - Inductors & Resistors:
• RL Circuits - Inductor...
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections
Here is a list of topics:
1. Faraday's Law of Electromagnetic Induction
2. Lenz's Law Explained - Right Hand Rule
3. Induced EMF & Magnetic Flux - Magnetic Field & Area of Coil
4. Induced EMF in a Rotating Coil
5. Induced Current & Electric Fields
6. Induced EMF, Voltage, Current & Resistance - Ohm's Law
7. Induced EMF in a Moving Straight Wire
8. Clockwise vs Counterclockwise induced current direction
9. Weber - Unit of Magnetic Flux
10. Moving Conductor, Induced EMF, Speed / Velocity & Magnetic Field
11. Increasing & Decreasing Currents & Induced Current
12. Induced EMF of AC Electric Generator - Angular Velocity, Loops / Number of Turns, Frequency
13. Transformers Step up and Step Down
14. Primary Turns and Secondary Coils
15. Primary Voltage, Secondary Current, & Electric Power
16. Self Inductance of a Solenoid
17. Energy Stored in a Magnetic Field
18. Energy Stored in an Inductor
19. Energy Density of a Magnetic Field
Disclaimer: Some of the links associated with this video may generate affiliate commissions on my behalf. As an amazon associate, I earn from qualifying purchases that you may make through such affiliate links.

Пікірлер: 401

@TheOrganicChemistryTutor 7 ай бұрын

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections

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@timetraveler0828 Ай бұрын

I rarely comment, to tell the truth. This is only the 5th comment that I make to a video, apart from replies. However, I should say this is the most helpful video on applying the Lenz's Law. I looked at my textbook before, and I couldn't understand well. I thought at first that it was because as a year 11 (IG) student, it's too far to study year 13 (A2) stuff. However, after I looked at this video, I suddenly feel that I'm confident on doing lots of questions on electromagnetic induction. You really give lots of things that the textbook doesn't give. You are so warm-hearted that you provide free service, just to help the students struggling or feeling difficult to understand these topics. Thank you so much!

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@alevelsdemystified3410 6 жыл бұрын

For the example at 15.33,which values would be needed to calculate the value of emf induced.Can someone please clarify?

@anishmanandhar1203 3 жыл бұрын

Thank you so much for your efforts!!!

@spelunkerd 4 жыл бұрын

Just before 42:06 we use calculated voltage and observed current to calculate resistance, but doesn't the coil have reactance that needs to be considered?The magnetic field is changing so why isn't the term impedance used rather than resistance? Or is impedence only applicable when the voltage source is external, rather than magnetically induced current in a coil?

@nazardplus8596 4 жыл бұрын

Thanks bro, it was quite helpful. However I have a question. How can I use the equation given for calculating the Inductance, to calculate the inductance of a horizontally wounded coil for an Induction cooktop. My confusion is on how to calculate the value of l(length).

@ahmedazaiz2327 4 жыл бұрын

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Any tips for physics 2 tests? I have one tomorrow and I swear I'm gonna fail.

@EpicMetalGears 6 жыл бұрын

Examples 28:18 and 29:03 are kind of confusing. The magnetic fields for each wire is on a different axis, I don't see how it does anything to oppose the other. Unless the circles are supposed to be along the same axis of the first wires magnetic field, which wasn't specified.

@gaganjangle2276 6 жыл бұрын

yea true. should have elaborated there

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@dumitruene402 6 жыл бұрын

I always use the screwing bottle cap rule to figure the direction of the magnetic field generated by the current. In wich way do you have to turn the cap to go in the way of the current? If you turn it to right it will go into the page and so on. Pretty cool rule if you ask me.