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An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are...

An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are the values of the respective magnetic and electric fields, so that the radius of a helix is 10cm, and its a pitch (vertical height of one complete helix turn) is 1 cm. Hint: approximate the motion as a circular motion is XY only due to magnetic field and motion in Z direction only due to electric field.

An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are the values of the respective magnetic and electric fields, so that the radius of a helix is 1 cm , its a pitch (vertical height of one complete helix turn) is 10 cm and initial kinetic energy of the electron was 3 keV (kilo electron-volts). Hint: approximate the motion as a circular motion is XY only due to magnetic field and motion in Z direction only due to electric field.

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genius_generous answered 2 years ago
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