which of the following graph correctly represents variation of magnitude of magnetic field $w.r.t.$ distance from axis?

Find magnitude and direction of force on following current carrying wires. Direction of magnetic field has been indicated in each case.

Magnetic field in a region is radially outward. Find force on the current carrying wire as shown in figure.

Two current carrying wire segments are placed as shown in figure. If force on segment $A$ due to segment $B$ is along $+x$ direction, what is the direction of force on segment $B$ due to segment $A$ ?

Find the force on the current carrying square loop due to infinitely long wire as shown in figure.

If magnetic field at a point $P(x, y, z)$ is given by $\overrightarrow{B}=\alpha \left(x+y\right)\hat{k},$ then the net force on loop shown in the figure is