33. A proton travelling at 23° w.rit. the direction of
a magnetic field of strength 2.6 mT experiences
â magnetic force of 6.5x10-17N.What is the
speed of the proton?
(a)2x10ms
16)4x10-5 ms
(c)6x10 ms?
(d)6x10-ms-1
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Answer:
just use commonsense
use the formula
F=q(v×B)
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