In the diagram below is shown a circular loop carrying current I. show that the direction of magnetic field with the help of lines of force.

A circular loop is carrying current and is said to be equivalent to a magnetic dipole. Then, a point on the loop lies in its

A circular loop is carrying current and is said to be equivalent to magnetic dipole. Then, a point on the axis of the loop lies in its

Does the torque acting on a loop carrying current in a magnetic field depend upon the shape of the loop.

A hexagonal loop of a metallic wire is of each side a and carries a current I . Find the magnitude of magnetic field at the centre of the loop.

Two long straight, current-carrying conductors , PQ and XY, are held a constant distance apart as shown in the figure. The conductors carry the magnitude of current in the same direction . A plan view form above the conductors is shown in the figure. Draw arrows, one in each case, to show the direction of the magnetic field at Q due to the current in wire XY. the force at Q as a result of the magnetic field due to the current in wire XY.

In the alongside figure a straight conductor B is carrying current in the vertical downward direction. What will be the direction of magnetic field lines around the conductor?

State the Biot-Savart's law for the magnetic field due to a current carrying element. Use this law to obtain a formula for magnetic field at athe centre of circular loop of radius r carrying steady current I . Sketch the magnetic field lines for a current loop clearly indicating the direction of the field.