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Question
A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is ______.
Options
towards south
towards east
downward
upward
Solution
A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is upward.
Explanation:
Applying Fleming's left-hand rule, we can infer that the direction of the magnetic field is upwards.
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