A charged particle of charge $\mathrm{e}$ and mass $\mathrm{m}$ is moving in an electric field ${{\rm{\vec E}}}$ and magnetic field ${{\rm{\vec B}}}$ Construct dimensionless quantities and quantities of dimension [T]-1
When electron enter in perpendicular magnetic field than magnetic force balance with centripetal force,
$\frac{m v^{2}}{\mathrm{R}}=q v \mathrm{~B}$
$\therefore\frac{q \mathrm{~B}}{m}=\frac{v}{\mathrm{R}}=\omega$
$\therefore\omega=\frac{v}{\mathrm{R}}=\frac{\mathrm{M}^{0} \mathrm{~L}^{1} \mathrm{~T}^{-1}}{\mathrm{~L}^{1}}=\mathrm{T}^{-1}$
Thus, angular frequency having dimension equal to $\mathrm{T}^{-1}$.
A magnetic field $\overrightarrow{\mathrm{B}}=\mathrm{B}_0 \hat{\mathrm{j}}$ exists in the region $\mathrm{a} < \mathrm{x} < 2 \mathrm{a}$ and $\vec{B}=-B_0 \hat{j}$, in the region $2 \mathrm{a} < \mathrm{x} < 3 \mathrm{a}$, where $\mathrm{B}_0$ is a positive constant. $\mathrm{A}$ positive point charge moving with a velocity $\overrightarrow{\mathrm{v}}=\mathrm{v}_0 \hat{\dot{i}}$, where $v_0$ is a positive constant, enters the magnetic field at $x=a$. The trajectory of the charge in this region can be like,
Give definition of magnetic field and give its unit.
In the given figure, the electron enters into the magnetic field. It deflects in ...... direction
If a proton is projected in a direction perpendicular to a uniform magnetic field with velocity $v$ and an electron is projected along the lines of force, what will happen to proton and electron
Two particles $x$ and $y$ have equal charges and possessing equal kinetic energy enter in a uniform magnetic field and describe circular path of radius of curvature $r_1$ and $r_2$ respectively. The ratio of their masses is