A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is
(a) towards south
(b) towards east
(c) downward
(d) upward
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Answered by
3
I think towards east
Answered by
6
According to the given details, the positively charged particle is projected towards west, hence the direction of current is towards west.
When it comes to the deflection, it is completely towards north, so force is towards north.
As per the Fleming's Left Hand Rule, when center finger points in the current direction, thumb points in the force direction, and then forefinger points in the magnetic field direction.
The answer to this question is upward direction.
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