A mass spectrograph is operated with deuterons, which have a charge of +e and a

Question

A mass spectrograph is operated with deuterons, which have a charge of +e and a mass of 3.34 x 10(-27) kg. Deuterons emerge from the source, which is grounded with negligible velocity. the velocity of the deuterons as they pass through the accelerator grid is 8.0 x 10(5) m/s. A uniform magnetic field of magnitude B=.20 T, directed out of the plant, is present at the right of the grid.

the deuterons are in circular orbit in the magnetic field. the radius of the orbit and the initial sense of deflection is:

(the answer is given in mm, and in which direction? (upward or downward)

thank you

Explanation / Answer

80mm, downward

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