Magnetic Force on a Current Carrying Wire

This physics video tutorial explains how to calculate the magnetic force on a current carrying wire in a magnetic field. The magnetic force depends on the current flowing through the conductor, the length of the wire, and the strength of the magnetic field as well as the orientiation of the magnetic field relative to the conductor. This video also explains how to determine the direction of the magnetic force on a current carrying conductor using the right hand rule and the i j k technique. This video on magnetism contains plenty of examples and practice problems.

Magnetic Force on a Current Carrying Wire:

Magnetic Force on a Moving Charge:

The Homopolar Motor:

The Lorentz Force:

Magnetic Field of a Current Carrying Wire:

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Magnetic Sensors - The Reed Switch:

Magnetic Force Between Two Parallel Wires:

Ampere's Law - Magnetic Field of a Solenoid:

Magnetic Field of a Toroidal Solenoid:

Magnetic Field of a Moving Charge:

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Torque on a Loop - Magnetic Dipole Moment:

The Hall Effect:

Magnetic Flux:

Faraday's Law of Electromagnetic Induction:

Lenz's Law - Induced Current:

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Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[mdsharafathossain]

I don't know who you are ...but for me, you are like a magician...who have all the solutions to my problems...
Hats off to your techniques....
thank you from the core of my heart.

[kaleb.dotson]

If you point with your fingers in the direction of the Current (I) and curl your fingers towards the magnetic field (B), your thumb will be in the direction of the force. Thought I would post this for anyone who may find this easier to comprehend.

[ptyptypty]

You are AMAZING!!!... I never really saw how you calculated the Cross products of the i, j, k Vectors.. but you made it so clear!!. THANK YOU.. and by the way..how do you know SO MUCH about everything????.. Math, chemistry, what is your degree in???.. wow.. you are so good at TEACHING all these concepts with so many examples!! You bring a Great service to the WORLD!! thank you!!

[smenezes]

Since you are determining the Force, you need the Left Hand Rule (motors - Right H Rule is for generators). Therefore, Center Finger towards current, First Finger towards field => Thumb gives direction of force.

[aubreygao]

thank you again! also we can use the left-hand rule to find the direction the force: let the B go through your palm and four fingers point the direction of I, then the thumb will point to the F :)

[bpnoobie]

I was really confused when my exam tells me only the direction of magnetic field but now i know the direction of the force and the velocity. Thank You Man.

[satvikaputcha]

You are a super human with extraordinary powers! Thank you again!!

[endyelijah]

In this particular topic I felt as if I was bumping into a brick wall. However, now I'm very clear and have fair understanding.
🙏🙏

[bibliotecamarchand]

Thumb in direction of current (I)
Four fingers in firection of mangentic field (B)

[phatsimolobelo]

Why is it that you are saying we use the right hand rule but you drew a left hand
I can't understand..

[oki]

what if we have the direction of the force and current but we need to find the direction of the magnetic field? what will we do then? huh?

[fenovida]

Both techniques were awesome but sin 0 degree is zero not 1

[hellmuth]

"sin of zero is one"
-Organic Chemistry Tutor 2017

[moonynoon]

What if the B value is given but amps and length is given? How am I supposed to find out the magnitude of the force

[aleetaannmary]

Sin 0 is 0, cos 0 is 1.Pls correct that sir.

[Salamanca-joro]

How tf you find the direction of the magentic force at 13:51??? bro i almost broke my hand and i still couldnt do it !!

[ayberkkum]

isnt it actually a combination of two magnetic fields ?

[ayberkkum]

The flemings left hand rule does not work in these examples right ?

[CoooolKidzzz]

Why do you have to change to meters from cm

[ethnicsovereignty]

explained by electroboom through a little musical