List of top Physics Questions on Gauss's Law

Consider three point charges \(-2Q, Q\) and \(-Q\) and three surfaces S\(_1\), S\(_2\) and S\(_3\) as shown in the figure. Match the entries of List-I with that of List-II.
List-I
(a) Net flux through S\(_1\)
(b) Net flux through S\(_2\)
(c) Net flux through S\(_3\)
List-II
(i) \(\frac{-2Q}{\epsilon_0}\)
(ii) \(\frac{-Q}{\epsilon_0}\)
(iii) Zero
Codes:
What will be the total electric flux through the faces of the cube as given in the figure with side of length 'a' if a charge Q is placed at B, midpoint of an edge of the cube (see figure)?
Two point charges \( 8 \, \mu C \) and \( -2 \, \mu C \) are located at \( x = 2 \, \text{cm} \) and \( x = 4 \, \text{cm} \), respectively on the x-axis. The ratio of electric flux due to these charges through two spheres of radii 3 cm and 5 cm with their centers at the origin is _______.

A square loop of sides \( a = 1 \, {m} \) is held normally in front of a point charge \( q = 1 \, {C} \). The flux of the electric field through the shaded region is \( \frac{5}{p} \times \frac{1}{\varepsilon_0} \, {Nm}^2/{C} \), where the value of \( p \) is:
A square loop of sides a=1mis held normally

C1 and C2 are two hollow concentric cubes enclosing charges 2Q and 3Q respectively as shown in figure. The ratio of electric flux passing through C1 and C2 is :
Cubes