ffice 365 Outlook oad 5. Consider a charged particle moving through a region in

Question

ffice 365 Outlook oad 5. Consider a charged particle moving through a region in which the electric field is perpendicular to the magnetic field, with both fields perpendicular to the initial velocity of the particle. Such a device is called a velocity selector because for one particular value of the particle speed viit the particle will travel straight through the device without being deflected, whereas particles with speeds that re either less than or greater than Vtincti will be deflected Perspective view u

Explanation / Answer

(a) YES, because the electric field apply force in same direction on positive charge and force in opposite direction on a negative charge.

(b) For selected speed

FE = FB

qE = qvB

v = E/B

v = 455 / .32

v = 1421.875 m/s (Answer)

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