Question

what is right hand thumb rule ?​

Answer 1

Explanation:

When electricity (conventional current) flows in a long straight wire it creates a circular or cylindrical magnetic field around the wire according to the right-hand rule. ... If the fingers of the right hand are curled in the direction of the circular component of the current, the right thumb points to the north pole

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Answer 2

Answer:

The right-hand rule imposes the following procedure for choosing one of the two directions. With the thumb, index, and middle fingers at right angles to each other (with the index finger pointed straight), the middle finger points in the direction of c when the thumb represents a and the index finger represents b.