Question #56d19

1 Answer

Right hand - classical direction
Left hand - electronic direction

Explanation:

You use the right hand when using the classical or conventional direction of the electric current (from + to -)

And you use the left hand when using the real or electronic direction (from - to +).

The figure below shows the two directions.
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The next figure shows the right hand grip rule. The thumb points along the direction of the conventional current and the other fingers give the direction of the magnetic field.
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