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Answered by mudit11
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Ans. 42 (2) is the same at all points
The magnetic field inside a long straight current-carrying solenoid is uniform which is represented by parallel lines. Hence it is same at all points.

Ans. 43 (3) Into The page
The direction of force is perpendicular to the direction of the magnetic field and the current as given by Fleming's left hand rule. 

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