why does a compass needle show deflection when bought near a bar magnet ?
Asked by | 10th Jan, 2010, 08:31: PM
Compass needle is itself a magnet - magnetized pointer and hence responds to the mangnetic field of the bar magnet.
Since the alpha particle is positively charged, it's direction of motion in magnetic field will be continuously changed due to magnetic force which is perpendicular to the velocity vector. And it'll perform uniform circular motion.
Answered by | 10th Jan, 2010, 09:43: PM
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