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Right-hand rule for cross product. The cross product of vectors and is a vector perpendicular to the plane spanned by and with the direction given by the right-hand rule: If you put the index of your right hand on and the middle finger on , then the thumb points in the direction of . [4] Fleming's right hand rule
There is also a Fleming's left-hand rule (for electric motors). The appropriately handed rule can be recalled from the letter "g", which is in "right" and "generator". These mnemonics are named after British engineer John Ambrose Fleming, who invented them. An equivalent version of Fleming's right-hand rule is the left-hand palm rule. [2]
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Please explain how can we relate a screw rule with a hand rule first. There is no way we can relate the right hand rule and the right hand grip (thump) rule. One (right hand rule) describes the direction of current produced and the other (thump rule) just describes the direction of magnetic field produced when a current moves through a coil.
Shoe designers have described a very large number of shoe styles, including the following: Leather ballet shoes, with feet shown in fifth position. A cantabrian albarca is a rustic wooden shoe in one piece, which has been used particularly by the peasants of Cantabria, northern Spain. [1] [2] A black derby shoe with a Goodyear welt and leather sole
Total face width is the actual dimension of a gear blank including the portion that exceeds the effective face width, or as in double helical gears where the total face width includes any distance or gap separating right hand and left hand helices. For a cylindrical gear, effective face width is the portion that contacts the mating teeth.
The sign of the line integral is based on the right-hand rule for the choice of direction of line element ds. To establish this sign, for example, suppose the field F points in the positive z-direction, and the surface Σ is a portion of the xy-plane with perimeter ∂Σ. We adopt the normal to Σ to be in the positive z-direction.