An electron moves through a uniform magnetic field B =B_0 i +2 B_0 j T. At a particular instant of time, the velocity of electron is u =3 i +5 j m /…

An electron moves through a uniform magnetic field $\displaystyle \vec{B}=B_0 \hat{i}+2 B_0 \hat{j} T$. At a particular instant of time, the velocity of electron is $\displaystyle \vec{u}=3 \hat{i}+5 \hat{j} \mathrm{~m} / \mathrm{s}$. If the magnetic force acting on electron is $\displaystyle \vec{F}=5 e \hat{k} N$, where $\displaystyle e$ is the charge of electron, then the value of $\displaystyle B_0$ is $\displaystyle \_\_\_\_$ $\displaystyle T$.