Problem 3.382

An electron accelerated by a potential difference \(V\) \(=1.0 \mathrm{kV}\) moves in a uniform magnetic field at an angle \(\alpha=30^{\circ} \mathrm{t}\) the vector \(B\) whose modulus is \(B=29 \mathrm{mT}\). Find the pitch of the helical trajectory of the electron.