Magnetics

An electron with kinetic energy \(5 \mathrm{~eV}\) enters a region of uniform magnetic field of 3 \(\mu \mathrm{T}\) perpendicular to its direction. An electric field \(\mathrm{E}\) is applied perpendicular to the direction of velocity and magnetic field. The value of E, so that electron moves along the same path, is __________ \(\mathrm{NC}^{-1}\).

(Given, mass of electron \(=9 \times 10^{-31} \mathrm{~kg}\), electric charge \(=1.6 \times 10^{-19} \mathrm{C}\))