Wires `1 and 2` carrying currents `i_(1) and i_(2)` respectively are inclined at an angle `theta ` to each other. What is the force on a small element `dl` of wire `2` at a distance of `r` from wire 1 ( as shown in figure) due to the magnetic field of wire 1`?

Wires 1 and 2 carrying currents i_1 and i_2 respectively are inclined at an angle theta to each other. What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in the figure) due to the magnetic field of wire 1 ?

Two long wire AB abd CD carry currents i_(1) and i_(2) in the direactions show in figure

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)

A long wire having a semi-circular loop of radius r carries a current I, as shown in Fig. Find the magnetic field due to entire wire.

A wire bent in the form of a sector of radius r subtending an angle theta^(@) at centre as shown in figure is carrying a current I. The magnetic field at O is :

A wire loop formed by joining two semicircular wires of radii R_1 and R_2 carries a current I as shown in figure. Find the magnetic field induction at the centre O.

A wire 1 m long is kept perpendicular to a magnetic field of 0.01 tesla. (i) What is the forde on the wire when it carries a current of 10A ? (ii) What is the force on the wire if it is parallel to the magnetic field ?

A long straight wire carrying current I is bent into the shape as shown in the figure. The circular portion of the wire has radius (10//pi)m . The centre of this circle is at a distance 1m from the straight portion of the wire. What is the magnitude of the magnetic field at the centre of the circular portion? Given pi^2=10 .