An electrostatic field line leaves at an angle from point charge q₁ , and connects with point charge -q₂ at an angle ( q₁ and q₂ are positive), as shown schematically in the figure. We have q₁=2 q₂ and =60^ . Then,

Options

1. Aa test charge placed at the midpoint O will be in equilibrium
2. B=90^
3. Cthe magnitude of the electric field at a distance r far away from O (see figure) is q₂ / 4 _o r^2 .
4. Dfor a negative test charge, the electrostatic potential energy is lower near q₁ as compared to that near q₂ .