In figure a point charge $+Q_1$ is at the centre of an imaginary spherical surface and another point charge $+Q_2$ is outside it. Point $P$ is on the surface of the sphere. Let ${\Phi _s}$be the net electric flux through the sphere and ${\vec E_p}$ be the electric field at point $P$ on the sphere. Which of the following statements is $TRUE$ ?
In figure a point charge $+Q_1$ is at the centre of an imaginary spherical surface and another point charge $+Q_2$ is outside it. Point $P$ is on the surface of the sphere. Let ${\Phi _s}$be the net electric flux through the sphere and ${\vec E_p}$ be the electric field at point $P$ on the sphere. Which of the following statements is $TRUE$ ?
- A
Both charges $+Q_1$ and $+Q_2$ make nonzero contributions to $\phi _S$ but only the charge $+Q_1$ makes a nonzero contribution to ${\vec E_P}$ .
- B
Both charges $+Q_1$ and $+Q_2$ make nonzero contributions to $\phi _S$ but only the charge $+Q_2$ makes a nonzero contribution to ${\vec E_P}$ .
- C
Only the charge $+Q_1$ makes a nonzero contribution to $\phi _S$ but both charges $+Q_1$ and $+Q_2$ make nonzero contributions to ${\vec E_P}$ .
- D
Only the charge $+Q_2$ makes a nonzero contribution to $\phi _S$ but both charges $+Q_1$ and $+Q_2$ make nonzero contributions to ${\vec E_P}$ .
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