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[[/Magnetic force]] follows the [[/right-hand rule]], for open palm: the thumb shows current $I$, magnetic field $B$ penetrates open palm, force $F$ acts in the direction of fingers. [[/Magnetic poles]] are denoted as: N - north, S - south. The force is proportional to the length $l$ of wire exposed to the magnetic field.

In this version (with the open palm), the following mnemonic can be used to make it easier to remember: 
  * **F**orce //**F**// acts in the direction of the straight "//**F**ingers//
  * the symbol for current is //**I**// which looks similar to a single thumb
  * the symbol for [[/flux density]] is //**B**// which is has some similarity to //**P**// as in //o**P**en **P**alm//

However - the same relationship between the directions can be shown by different configurations of right or left hand, as shown below.

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  right-hand_rule_left-hand_rule_single_wire_e-m.png
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{{tag> Right-hand_rule Fleming's-right-hand_rule Right-hand_grip_rule Right-hand_thumb_rule Right-hand_corkscrew_rule End_rule Clock_rule Ampere's_rule Files}}