Assertion: Four point charges q_1, q_2, q_3 a | vedclass

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(C) According to Gauss's Law,the total electric flux $\phi$ through a closed surface is given by $\phi = \frac{q_{	ext{enclosed}}}{\epsilon_0}$.In th

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If Assertion is correct but Reason is incorrect.

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(C) According to Gauss's Law,the total electric flux $\phi$ through a closed surface is given by $\phi = \frac{q_{	ext{enclosed}}}{\epsilon_0}$.In the given figure,the charges enclosed by the Gaussian surface are $q_1$ and $q_2$. Therefore,the flux depends only on $q_1$ and $q_2$. Thus,the Assertion is correct.However,the electric field at any point on the Gaussian surface is the vector sum of the electric fields produced by all the charges present in the space ($q_1, q_2, q_3$ and $q_4$). Therefore,the electric field at any point on the surface depends on all the charges,not just the enclosed ones. Thus,the Reason is incorrect.

Assertion: Four point charges $q_1, q_2, q_3$ and $q_4$ are as shown in the figure. The flux over the shown Gaussian surface depends only on charges $q_1$ and $q_2$.
Reason: Electric field at all points on the Gaussian surface depends only on charges $q_1$ and $q_2$.

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Assertion: Four point charges $q_1, q_2, q_3$ and $q_4$ are as shown in the figure. The flux over the shown Gaussian surface depends only on charges $q_1$ and $q_2$.Reason: Electric field at all points on the Gaussian surface depends only on charges $q_1$ and $q_2$.