Two point charges $q_1$ and $q_2 (=q_1/2)$ are placed at points $A(0, 1)$ and $B(1, 0)$ as shown in the figure. The electric field vector at point $P(1, 1)$ makes an angle $\theta $ with the $x-$ axis, then the angle $\theta$ is
Two point charges $q_1$ and $q_2 (=q_1/2)$ are placed at points $A(0, 1)$ and $B(1, 0)$ as shown in the figure. The electric field vector at point $P(1, 1)$ makes an angle $\theta $ with the $x-$ axis, then the angle $\theta$ is
- A
${\tan ^{ - 1}}\left( {\frac{1}{2}} \right)$
- B
${\tan ^{ - 1}}\left( {\frac{1}{4}} \right)$
- C
${\tan ^{ - 1}}\left( 1 \right)$
- D
${\tan ^{ - 1}}\left( 0 \right)$
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