the charges 1,2 and 3 are moving in uniform magnetic field
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magnetic force on a charge = q ( V x B )
i.e. q times cross product of V & B vectors.
if magnetic field direction is inward the plane,
(a) if charge is +ve, it will experience a force towards its left perpendicularly.
(b) if it is -ve, it will experience a force towards its right perpendicularly.
(c) if particle is neutral (i.e. q = 0) , no magnetic force will act
therefore, particle-1 is +ve and particle-2 is neutral and particle-3 is -ve....
Option (A) is correct..
i.e. q times cross product of V & B vectors.
if magnetic field direction is inward the plane,
(a) if charge is +ve, it will experience a force towards its left perpendicularly.
(b) if it is -ve, it will experience a force towards its right perpendicularly.
(c) if particle is neutral (i.e. q = 0) , no magnetic force will act
therefore, particle-1 is +ve and particle-2 is neutral and particle-3 is -ve....
Option (A) is correct..
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