Question
Fri August 26, 2011 By:

can you explain the magnetic field of a circular loop with respect to maxwell thumb rule? thank you

Expert Reply
Fri August 26, 2011

The diagram given below explains the nature of magnetic field due to a current carrying circular loop. Using Maxwell's thumb rule , the direction of magnetic field is found out and drawn as shown in diagram. 

 

 

 

Right Hand Thumb Rule:

                 If a current carrying conductor is imagined to be held in your right hand such that the thumb points along the direction of current, then the direction of the wrapped fingers will give the direction of magnetic field lines.

Accordingly if current in wire is vertically upward, the magnetic field lines are anticlockwise, while if current in wire is vertically downward, the magnetic field lines are clockwise.

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