A condutor carrying current `I` is placed parallel to a current per unit width `j_(0)` and width `d`, as shown in the Find the force per unit length on the conductor
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Find force per unit length at P

A long straight conductor carrying current I_1 is placed in the plane of a ribbon carrying current I_2 parallel to the previous one. The width of the ribbon is b and the straight conductor is at a distance a from the near endge. Find the force of attraction between the two.

Depict the magnetic field lines due to two straight, long parallel conductors carrying current I_(1) and I_(2) in the same direction.Hence deduce an expression for the force acting per unit length on one conductor due to the other.Is this force attractive or repulsive? Figure shows a rectangular current carrying loop placed 2 cm away from a long,straight, current-carrying conductor.What is the direction and magnitude of the net force acting on the loop?

A short current carrying conductor is placed perpendicular to the axis of a current carrying ring as shown. The direction of force acting of the conductor is

Shown in the figure is a very long semi-cylindrical conducting shell of radius R and carrying a current i. An infinitely long straight current carrying conductor is lying along the axis of the semicylinder. If the current flowing through the straight wire be i_(0) , then the force per unit length on the conducting wire is :

Define SI unit of current in terms of the force between two parallel current carrying conductors. (b) Two long straight parallel conductors carrying steady currents I_(a)andI_(b) along the same direction are separated by a distance d. How does one explain the force of attraction between them ? If a third conductor carrying a current I_(c) in the opposite direction is placed just in the middle of these conductors , find the resultant force acting on the third conductor.

A conductor PQ, carrying a current i is placed perpendicular to a long conductor xy carrying a current i. The direction of force on PQ will be

A conductor AB of length L carrying a current I', is placed perpendicular to a long straight conductor XY carrying a current I as shown in Fig. The forces on AB has magnitude