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Solution


Q.

A proton enters a magnetic field at right angle to it, as shown below. The direction of force acting on the proton will be:
1 To the right  
2 To the left  
3 Out of the page  
4 Into the page  

Ans.

(4)

The proton enters a magnetic field at right-angle to it. Therefore, it will experience a force and the direction of force is calculated using Fleming’s Left-Hand Rule.