Question

An electric line of force in the $xy-plane$ is given by equation $x^2+y^2=1$. 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

Answer 1

The correct option is C Will move along the circular line of force

Charge will move along the circular line of force because $x^2+y^2=1$ is the equation of circle in $xy-plane$.