You shoot an alpha particle into a uniform magnetic field. The alpha particle ha

Question

You shoot an alpha particle into a uniform magnetic field. The alpha particle has an initial speed of 1.7 ? 107 m/s. The initial trajectory, moving horizontally from left to right, is set so that it will enter the magnetic field directly in front of you. If the direction of the magnetic field is horizontal, away from the observer. After entering the field, will the alpha particle move in a clockwise or counterclockwise orbit in a vertical plane? (Alpha particles carry q = +2e charge and the mass is m = 6.6 ? 10-27 kg)

If the alpha particle moves in the orbit with a diameter of 28.8 cm, what is the magnitude of the magnetic field?
T

Explanation / Answer

field is vertical B=6.64424*10^(-27)*1.7107/(2*1.6*10^(-19)*0.1)=3.5519691*10^(-7) T

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