Question

# 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 line of force
D
Information is insufficient to draw any conclusion
Solution
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#### The correct option is C Will move along the circular line of forceCharge will move along the circular line of force because x2+y2=1 is the equation of circle in xy−plane.

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