Two wires carrying equal currents i each, are placed
perpendicular to each other, just avoiding a contact. If
one wire is held fixed and the other is free to move under
magnetic forces, what kind of motion wil results?

Two long wires, carrying currents i_1 and i_2, are placed perpendicular to each other in such a way that they just avoid a contact. Find the magnetic force on a small length dl of the second wire situated at a distance l from the first wire. (figure)

Two long wires a and b, carrying equal currents of 10*0A, are placed parallel to each other with a separation of 4*00 cm between them as shown in figure. Find the magnetic field B at each of the points P,Q and R.

A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 0.27 T.What is the magnetic force on the wire ?

A 3.0m wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to the 0.277 . What is the magnetic force on the wire?

Shows a circular wire-loop of radius a m carrying a current I, placed in a perpendicualr matgnetic field B. (a) Consider a small part dl of the wire. Find the force on this part of the wire exerted by the magnetic field. Find the force of compression in the wire.

A rectangular metallic loop of length l and width b is placed coplanerly with a long wire carrying a current I . The loop is moved perpendicular to the wire with a speed v in the plane containing the wire and the loop. Calculate the emf induced in the loop when the rear end of hte loop is at a distance a from the wire. Solve by unsing Faraday's law for the flux thrugh the loop and also by replacing different sagments with equivalent batteries.

Two long, straight wires, each carrying an electric current of 5.0 A, are kept parallel to each other at a separation of 2.5 cm. Find the magnitude of the magnetic force experienced by 10 cm of a wire.

Two parallel wires carry currents of 20A and 40A in opposite directions. Another wire carrying a current antiparallel to 20A is placed midway between the two wires. The magnetic force on it will be

Two long parallel wires carrying equal currents which are 8 cm apart produce a magnetic field 200 mu T mid way between them. The magnitude of the current in each wire is

(I) Two vecotrs which are perpendicular to each other are called Orthogonal vectors. (II) To find resultant of two of addition. Which statement is is correct?