What is Amperian Loop? Explain with a proper definition.

It is an imaginary closed loop around a current carrying conductor through which ampere’s law is applied to that conductor.

The path integral of the dot product of magnetic field and unit vector along a closed loop, Amperian loop, is proportional to the net current encircled by the loop,�A current is positive if it flows along the RHR normal direction of the Amperian loop, as defined by the direction of integration.