A current of $5.0 A$ exists in the loop shown in Figure. The wire $AB$ has a length of $50 \mathrm{cm}$ and lies in a magnetic field of $0.20 T$. What is the magnetic force acting on the wire?

Find the magnitude of the magnetic force on the segment $PQ$ placed in a magnetic field of $0.25 T$, if a current of $5 A$ flows through it, as shown in Figure.

Two very long, straight, parallel wires $A$ and $B$ carry currents of $10 A$ and $20 A$ respectively and are at a distance $20 \mathrm{cm}$ apart, as shown in Figure. lf a third wire $C$ (length $15 \mathrm{cm}$) having a current of $10 A$ is placed between them, how much force, will act on $C$? The direction of current in all the three wires is same.

In Figure, $ABCD$ is a rectangular loop made of uniform wire. The length $AD=BC=1 \mathrm{cm}$. The sides $AB$ and $DC$ are much longer than $AD$ or $BC$. Find the magnetic force per unit length acting on the wire $DC$ due to the wire $AB$ if the ammeter reads $10 A$.

A rectangular loop of wire of size $2 \mathrm{cm}\times 5 \mathrm{cm}$ carries a steady current of $1 A$. A straight long wire carrying $4 A$ current is kept near the loop as shown in Figure. If the loop and the wire are coplanar, find (i) the torque acting on the loop and (ii) the magnitude and direction of the force on the loop due to the current carrying wire.

A square loop of side $20 \mathrm{cm}$ carrying current of $1 A$ is kept near an infinite long straight wire carrying a current of $2 A$ in the same plane as shown in Figure. Calculate the magnitude and direction of the net force exerted on the loop due to the current carrying conductor.