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:::There, I've done it. It's not perfect, so I look forward to any polishing that others are able to do. In particular, it needs a diagram to illustrate the last paragraph of the "Physical basis of why the rules apply" section, showing the cross-section of a wire in a horizontal magnetic field, with all the lines of force bunched round underneath it. (My skills aren't up to this, I'm afraid). I did think of moving the article to "Fleming's left hand rule and Fleming's right hand rule", but have left it as "Fleming's left hand rule for motors" for the present. What do others think? [[User:TheAMmollusc|TheAMmollusc]] ([[User talk:TheAMmollusc|talk]]) 12:32, 1 April 2011 (UTC)
:::There, I've done it. It's not perfect, so I look forward to any polishing that others are able to do. In particular, it needs a diagram to illustrate the last paragraph of the "Physical basis of why the rules apply" section, showing the cross-section of a wire in a horizontal magnetic field, with all the lines of force bunched round underneath it. (My skills aren't up to this, I'm afraid). I did think of moving the article to "Fleming's left hand rule and Fleming's right hand rule", but have left it as "Fleming's left hand rule for motors" for the present. What do others think? [[User:TheAMmollusc|TheAMmollusc]] ([[User talk:TheAMmollusc|talk]]) 12:32, 1 April 2011 (UTC)


Not really.. Force is the cross product of (charge*velocity) and B the magnetic field. F = (qv)X B - so get the sign correctly the first finger should be in the direction of current, the middle finger in the field direction. Here is an example. https://www.phy.duke.edu/~schol/phy152/howtos/rhr_howto.pdf
== Induced current? ==
== Induced current? ==
Strictly speaking it should be induced emf as current is present only if the circuit is closed.
Strictly speaking it should be induced emf as current is present only if the circuit is closed.

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Problem

The picture is not obvious enough. The middle finger is bent inward and the other two are straight. Of course with a little deduction (or induction) one can figure it out, but does the common person do that? NO. how confusing @_@

-Kristan Wifle

Huh?

I know the right hand rule for resulting motion from a preexisting current and field, with the same hand configuration, except the Index finger represents I (current), the Birdie finger represents B (field), and the Thumb represent THRUST (force). It gives the opposite result of what is stated. I understand this is a generator hfghjlgfkjhflkghjlfkgjhlfjhlghjflgkhjioutrtit\\


rule]]. I added the mnemonic you listed above (that's the same one I learned, though using the palm instead of the middle finger) as an alternate at Fleming's left hand rule, since that seemed to be the best place for it, since the motor/generator distinction seemed more important than the right hand/left hand distinction. I also found some other images on the various Wiki projects, so I added them. But these pages still need a lot of work, and I'd encourage anyone with subject matter expertise to be bold and help reorganize them. --Arcadian 12:49, 14 August 2006 (UTC)[reply]


Can someone add in about faraday's Law which finger is the magnetic field/current/force?

What a tangle! (Re: articles on FLHR, FRHR, FBI, then a separate one on Left-Hand Rule). OK, I'll rise to the challenge. "Be Bold," you say. OK, I'll try. But perhaps not today... it's too close to the weekend. I will have a go next week, if no-one else has beaten me to it. TheAMmollusc (talk) 11:00, 25 March 2011 (UTC)[reply]
What I propose to do (next week) is to copy-paste the material from this FRHR page to the end of the FLHR page, then to Move the FLHR page to page called "Fleming's Left Hand Rule and Fleming's Right Hand Rule". Then, I will make this FRHR page into a redirect, and will check as many of the redirect pages to the current FLHR page that I can find. Does anyone have any objections, or better suggestions? TheAMmollusc (talk) 11:08, 25 March 2011 (UTC)[reply]
I will, of course, not just copy-paste, but then do the necessary stitching together. The new page will have an explanation of when to use the LHR and when to use the RHR. I will also expand on any notes about conventional current flowing from positive to negative. TheAMmollusc (talk) 11:10, 25 March 2011 (UTC)[reply]
OK, I've made a start. I'll spread the work out over several lunch-times. If anyone wishes to view the current state of the draft article, or even to help edit it, I am currently developing it at my User:TheAMmollusc/Incubation page. TheAMmollusc (talk) 10:52, 28 March 2011 (UTC) Just to confirm that the development of the page continues, and it is starting to shape up (hopefully for a transfer to the live page on Friday). TheAMmollusc (talk) 06:53, 30 March 2011 (UTC)[reply]
There, I've done it. It's not perfect, so I look forward to any polishing that others are able to do. In particular, it needs a diagram to illustrate the last paragraph of the "Physical basis of why the rules apply" section, showing the cross-section of a wire in a horizontal magnetic field, with all the lines of force bunched round underneath it. (My skills aren't up to this, I'm afraid). I did think of moving the article to "Fleming's left hand rule and Fleming's right hand rule", but have left it as "Fleming's left hand rule for motors" for the present. What do others think? TheAMmollusc (talk) 12:32, 1 April 2011 (UTC)[reply]

Not really.. Force is the cross product of (charge*velocity) and B the magnetic field. F = (qv)X B - so get the sign correctly the first finger should be in the direction of current, the middle finger in the field direction. Here is an example. https://www.phy.duke.edu/~schol/phy152/howtos/rhr_howto.pdf

Induced current?

Strictly speaking it should be induced emf as current is present only if the circuit is closed.