Flemings Left Hand Rule
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Date: 2023-11-17
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Comments and reviews: 16
Dwayne
As a non-electrician but an operator who has had sync very large generators to the grid, I still can't put this into practice. Maybe I just need to connect up a few motors and I'll finally be able to apply this rule. And for the life of me, I can't find out how you can carefully disconnect a 3-phase motor and an exact replacement and installed as marked when removed, runs backwards.
I understand the rule, I just can't put into practice.
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As a non-electrician but an operator who has had sync very large generators to the grid, I still can't put this into practice. Maybe I just need to connect up a few motors and I'll finally be able to apply this rule. And for the life of me, I can't find out how you can carefully disconnect a 3-phase motor and an exact replacement and installed as marked when removed, runs backwards.
I understand the rule, I just can't put into practice.
reply
Dahni
More importantly what's the difference with the right hand rule? Because that's the convention used in my textbooks.
These conventions gave me a lot of headaches for nothing.
Now I just use the right hand rule for everything. Just have to keep in mind the difference between generators and motors!
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More importantly what's the difference with the right hand rule? Because that's the convention used in my textbooks.
These conventions gave me a lot of headaches for nothing.
Now I just use the right hand rule for everything. Just have to keep in mind the difference between generators and motors!
reply
Josh
As an electrical engineer, I learned the right hand rule. I just had to look up the difference (and different uses) between left hand and right hand rules. Maybe that would have been useful to cover quickly or mention in your video?
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As an electrical engineer, I learned the right hand rule. I just had to look up the difference (and different uses) between left hand and right hand rules. Maybe that would have been useful to cover quickly or mention in your video?
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Aniketh
I just remember it as 'FBI' and coincidentally, it goes in correct order Thumb, Index Finger and Middle Finger respectively. Force (F) - Thumb, Magnetic Fields (B) - Index Finger, Current (I) - Middle Finger. Thank me later!
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I just remember it as 'FBI' and coincidentally, it goes in correct order Thumb, Index Finger and Middle Finger respectively. Force (F) - Thumb, Magnetic Fields (B) - Index Finger, Current (I) - Middle Finger. Thank me later!
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Chuck
Going to Engineering school I learned a different right hand rule. It assisted in getting home from the pubs in the evening. Thumb to the nose. Middle finger to the horizon, first finger points to vertical. 8)
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Going to Engineering school I learned a different right hand rule. It assisted in getting home from the pubs in the evening. Thumb to the nose. Middle finger to the horizon, first finger points to vertical. 8)
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The
Yes thank you for posting this i just started on this topic and was looking for videos to help and you came when the world needed you the most. thank you
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Yes thank you for posting this i just started on this topic and was looking for videos to help and you came when the world needed you the most. thank you
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Ben
Hi I am a bit confused because current flow from negative to positive. So in actual fact will the force be always in opposite of this theory or rule?
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Hi I am a bit confused because current flow from negative to positive. So in actual fact will the force be always in opposite of this theory or rule?
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Dee
I do not fully understand what is meant by the downward and upward force for the wire. What lower tier education am I missing to understand this?
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I do not fully understand what is meant by the downward and upward force for the wire. What lower tier education am I missing to understand this?
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christosvoskresye
Or, you could just use F/l = I x B -- the Lorentz Force on a wire -- and use the Right Hand Rule as with all other cross products.
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Or, you could just use F/l = I x B -- the Lorentz Force on a wire -- and use the Right Hand Rule as with all other cross products.
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Boringpenguin
I still remember our first test on electromagnetism back in high school. Everyone was just rotating both hands like a maniac lol
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I still remember our first test on electromagnetism back in high school. Everyone was just rotating both hands like a maniac lol
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Matt
As a left handed Fleming, I assert that this was the greatest discovery of all time. Okay. maybe second to Relativity. but a close second.
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As a left handed Fleming, I assert that this was the greatest discovery of all time. Okay. maybe second to Relativity. but a close second.
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Anders
F B I works for the LEFT -easy to remember! Thumb=Force, pointing finger=mag field, conventional current = flipping finger, Tada!
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F B I works for the LEFT -easy to remember! Thumb=Force, pointing finger=mag field, conventional current = flipping finger, Tada!
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Maksims
The way I remember this rule: federal bureau of investigation = FBI = Force, Magnetic field, Current; from the thumb downwards
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The way I remember this rule: federal bureau of investigation = FBI = Force, Magnetic field, Current; from the thumb downwards
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Luciano
I thought you would teach us how to shoot lightning from our fingers - my disappointment is immeasurable and my day is ruined.
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I thought you would teach us how to shoot lightning from our fingers - my disappointment is immeasurable and my day is ruined.
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Brian
This takes me back to when i was learning to be an Electrician. Thanks for the reminder and for sharing
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This takes me back to when i was learning to be an Electrician. Thanks for the reminder and for sharing
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Hi
If you live in Australia we swap the left hand with the right, vise versa becasue we are upside down.
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If you live in Australia we swap the left hand with the right, vise versa becasue we are upside down.
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