Using Biot-Savart Law find the magnetic field intesity due to current carrying loop at an external point on the axis that passes perpendiculary to the plane of the loop through the centre. What is the field intensity at the centre?

What is the magnetic field at the centre C of the circular loop shown in Fig.?

Using Ampere's circuital law, find the magnetic flux density at the centre of a long solenoid carrying current.

How does the magnetic field at the centre of a current carrying circular coil change, when current is doubled and its radius is halved?

Find an expression for MI of a thin circular RING about an axis passing through its centre and perpendicular to the plane of the ring.

A square loop of side 3cm is placed 25 cm away from a Convex mirror of focal length 10cm. The aixs of the mirror passes through the intersecting point of the diagonals of the loop and is perpendicular to the plane of the loop. What is the area enclosed by the image of the loop?

Find an expression for the magnetic field at points on the axis of a circular current loop.

What is the magnetic field at a point placed outside of a long solenoid carrying current I.