A current carrying wire of length $L$ is suspended horizontally by a spring of force constant $K$ as shown. The system is in equilibrium. A magnetic field $B$ is switched on into the plane of paper suddenly. Which of the following statements is correct?

In a region of crossed fields as shown, the strength of electric field is $E$ and that of magnetic field is $B.$ Three positively charged particles with speeds $V_1, V_2$ and $V_3$ are projected and their paths are shown. From this it implies that

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).