1.

Class XII problema proton is placed in a uniform electric field directed along positive x axis .in which direction will it tend to move?

Answer»

As the PROTON is at rest, v=0
From Lorentz's equation,
F = Q(v x b) = 0 (As v=0)
THUS, no force is experienced by the proton.
So, it will not tend to move in any direction.



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