Physics
A proton moving towards East enters in a uniform magnetic field directed downwards. Find the direction of the force acting on it.
Answer
The force will act towards North.
Reason — Here direction of current will be same as direction of motion of proton. From Fleming's left hand rule when the central finger points towards east (direction of proton) and forefinger points (downward) then direction of magnetic force will be given by thumb which is pointing in the north direction.
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