13. When current passed through a circular coil, magnetic field lines are not in one direction.
a. How can we find the direction of magnetic field?
b. What are the factors on which the intensity of magnetic field of a circular coil depends?
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Magnetic Field due to Current Carrying Circular Loop
The direction of magnetic field of every section of the circular loop can be found by using the right hand thumb rule. At the centre of the circular loop, The magnetic field lines are straight.
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