Name the scientist who experimentally demonstrated the presence of a magnetic field around the current-carrying conductor?
By using a compass needle describe how can you demonstrate that there is a magnetic field around a current carrying conductor.
(a) Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
(b) Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.
Name the rule which tells the direction of the magnetic field around a current-carrying conductor.