Magnetic Force Between Parallel and Opposite Currents

Physics Ninja looks at the magnetic force between 2 currents. Cases of currents in the direction and opposite directions are considered. The right hand rules for calculating the magnetic force and the direction of the magnetic are reviewed.

[frankiezelasko]

Was struggling with the conceptual side of this problem in class and this video has helped so much!!

[ΆντζελαΡέτζο]

you are so good on what you are teaching. Im really struggling with physics.
Keep going :)

[Olena-go]

Very good explanation!!!…Thank you very much!…Tried to read a couple0f books-did not get a clear picture!…Even ”College Physics” by Knight, Jones, Field didn’t help this time…(Usually it gives me a good idea about the topic)…I am nearly retired age mom of a young university student and I have never studied physics in University (English is my second language)….However your lessons have been helping me a lot during this year…Thanks again!…🙏🇺🇦🇨🇦

[Salamanca-joro]

9:33 why did we change the formula from being F=uoi1i2L/2 pi r
To F/L =

Is it because we didnt have the Value of L ? Is this what we do when we dont have L ?
Like if we had the L the the formula wolud have been the same right ? Like
F=uoi1i2L/2pi R

I need some clarification

[ShimelesTeacher]

Can you show how F = IL × B is derived ?

[marjorieromero]

How do the magnetic forces at place in space influence satellites? Is the magnetic field created from the Sun used in calculating how it affects Earth orbiting satellites?

[scottcarpenter]

Hi, PhysicsNinja, must one specify how long is wire #1? Infinite length and parallel to #2?