Two charges $q_1$ and $q_2$ having same magnitude of charge are moving parallel to each other and they enter into a region of uniform magnetic field as shown. If they have same mass and the time spent by them in the magnetic field are $t_1$ and $t_2$ respectively, then

The figure shows a loop of wire carrying a current $i$ as shown. There exists a uniform magnetic field along $x$-axis given by $\overrightarrow{B}=B_0\hat{i}.$ If the length of each side is $a,$ then

A current carrying loop of radius $R$ and mass$\text{'}m\text{'}$ is placed inside a uniform magnetic field an shown

An electron (charge $-e,$ mass $m )$ enters a uniform magnetic field $\overrightarrow{B}=-B_0\hat{k}$ at $A$ with a speed $v_0$ at an angle $37°$ and leaves the field at $B$ with speed $v$ (see figure). Then choose the correct statement(s).

A rectangular loop carrying current $i$ is shown in the diagram. If the magnetic field in the region is $2B_0\hat{i}+B_0\widehat{ j},$ then choose the correct statement(s).

A circular loop of radius $R$ carries current $I$ and is parallel to the $x-y$ plane. A uniform external magnetic field $-B_0\hat{k}$ exists in the region. The maximum tension which the wire of the loop can withstand is $T_0.$ Then