A wire placed along the north-south direction carries a current of 8A from south to north. Find the magnetic field due to a 1cm piece of wire at a point 200 cm north-east from the piece.

A wire placed along north-south direction carries a current of 10 A from south to north. Find the magnetic field due to a 1 cm piece of wire at a point 200cm north-east from the piece.

A wire placed along north-south direction carries a current of 5A from south to north. Find the magnetic field due to a 1cm piece of wire at a point 200cm north east from the piece.

A straight wire carries a current of 6A from south to north direction. What is the magnetic field due to 1cm piece of wire at a point 50cm , 30^@ east of north?

A current of 5A is flowing from south to north in a straight wire. Find the magnetic field due to a 1cm piece of wire at a point 1m north east from the piece of wire.

A current element of length 0.1 cm is placed along northsouth direction and carries a current of 5 A from south to north. Find the magnetic field due to the current element at a point located at a distance of 150 cm from it towards east.

a) A circular loop of Radius R carries a current I. Obtain an expression for the magnetic field at a point on its axis at a distance of x from its centre. b) A conducting rod of length 2 m is placed on a horizontal table in north-south direction. It carries a current of 5 A from south to north. Find the direction and magnitude of magnetic force acting on the rod. Given that Earth's magnetic field at the place is 0.6 xx 10^(-4) T and angle of dip is (pi/6)

A long straight wire in the horizontal plane carries a current of 50A in north to south direction. Give the magnitude and direction of vecB at a point 2*5m east of the wire.

A long straight wire , lying in horizontal plane is carrying 20 A of current from east to west. What is the magnetic field due to the wire at a point (i) 10 cm south from the wire and (ii) 20 cm upward in its vertical plane?