Imagine a current carrying wire with the direction of current downward or into the page. The direction of magnetic field lines is

A current carrying power line carries current from west to east. The direction of magnetic field 1m above is

A current carrying power line carries current from west to east, the direction of magnetic field 1m above it is

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?

Draw the magnetic field lines around a current carrying wire. If the direction of current is out of the page?

Along the direction of current carrying wire, the value of magnetic field is ?

The force exerted on a current-carrying wire placed in magnetic field is zero when the angle between the wire and the direction of magnetic field is :

A current carrying power line carries current from west to east. The direction of magnetic field at a short distance, above it, is