An electron accelerated by a potential difference \( V=1.0 \mathrm{kV} \) moves in a uniform mag...

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