explain right hand thumb rule
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: a rule in electricity: if the thumb, the forefinger, and the middle finger of the right hand are bent at right angles to one another with the thumb pointed in the direction of motion of a conductor relative to a magnetic field and the forefinger in the direction of the field, then the middle finger will point in the ...
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Right Hand Thumb rule-
Imagine you are grasping (or holding) the current - carrying wire in your right hand
Imagine you are grasping (or holding) the current - carrying wire in your right handso that your thumb points in the direction of current, then the direction in which your fingers encircle the wire will give the direction of magnetic field line around the wire.
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