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Questions  

An electric line of force in the xy plane is given by equation x2+y2=1.  A particle with unit positive charge, initially at rest at the point x=1,y=0 in the xy plane

a
Not move at all
b
Will move along straight line
c
Will move along the circular path.
d
Information is insufficient to draw any conclusion

detailed solution

Correct option is C

Charge will move along the circular line of force because x2+y2=1 is the equation of circle in xy-plane.

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