In the following figure a wire bent in the form of a regular polygon of `n` sides is inscribed in a circle of radius `a`. Net magnetic field at centre will be

A current I flows through a thin wire shaped as regular polygon of n sides which can be inscribed in a circle of radius R. The magnetic fidl induction at the center of polygon due to one side of the polygon is

A current I flows through a thin wire shaped as regular polygon of n sides which can be inscribed in a circle of radius R. The magnetic fidl induction at the center of polygon due to one side of the polygon is

A current I flows through a thin wire shaped as regular polygon of n sides which can be inscribed in a circle of radius R . The magnetic field induction at the center of polygon due to one side of the polygon is

A regular polygon of nine sides, each of length 2 is inscribed in a circle. The radius of the circle is

A nine-side regular polygon with side length 2, is inscribed in a circle. The radius of the circle is

The area of a regular polygon of in-sides inscribed in a circle is to that of the same number of sides circumsending the same circle is 3:4 then n=

If a thin wire of length L is given the shape of a regular polygon of n sides and current I flows through it, what will be the net magnetic field at the centre of the polygon if n is infinity?

If a twelve sides regular polygon is inscribed in a circle of radius 3 centimeters,then the length of each side of the polygon is