The direction does the magnetic field in the center of the coil point as shown in the diagram is the left.
- The standard right hand grip rule can be used to know the direction of the magnetic field.
The rule states that If the right hand fingers curl round the coil in the direction of the current, then the thumb points in the direction of the magnetic field down the centre of the coil.
It is known that at the centre of the circular loop, The magnetic field lines are straight. The various segment of circular loop carrying current create magnetic field lines in the same direction with in the loop.
Conclusively, The direction of magnetic field at the centre of circular coil is simply known to be perpendicular to the place of the coil.
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