List 'the factors on which the magnetic field produced by a current carrying straight conductor depends. State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic field lines due to a straight current carrying field lines due to a stright current carrying conductor.

Explanation

Factors on which the m.agnetic field produced by a current canying conductor depends are :
(i) current passing through the conductor.
(ii) distance of the magnetic compass from the conductor.
Right Hand Thumb Rule gives the direction of magnetic field.