Student Login

Home›Chapters›Electrostatics PYQs›Electric Flux & Gauss's Law›Question 109

JEE Main 2017 (9 Apr, Shift 1) · Electric Flux & Gauss's Law

Electric Flux & Gauss's Law question from JEE Main 2017 (9 Apr, Shift 1)

Q109JEE Main 2017 · 9 APR · SHIFT 1Easy

Electric Flux & Gauss's Law

Four closed surfaces and corresponding charge distributions are shown below.

Let the respective electric fluxes through the surfaces be $\Phi_1, \Phi_2, \Phi_3$ and $\Phi_4$ . Then:

Show answer and solution

Answer: (c)

$\Phi_1$ : $q_{enc} = 2q$ .
$\Phi_2$ : $q + q + q - q = 2q$ .
$\Phi_3$ : $q + q = 2q$ ( $5q$ is outside).
$\Phi_4$ : $8q - 2q - 4q = 2q$ ( $3q$ is outside). All equal $\dfrac{2q}{\varepsilon_0}$ .
So the answer is (c).

Report a mistake

More questions on Electric Flux & Gauss's Law

The region between two concentric spheres of radii a and b, respectively (see figure)…JEE Main 2016
The electric field in a certain region is acting radially outward and is given by E = Ar…NEET 2015 (AIPMT, Cancelled Paper)
Shown in the figure are two point charges + Q and - Q inside the cavity of a spherical…JEE Main 2015 (10 Apr, Shift 1)
The electric field in a region of space is given by, E = E₀i + 2 E₀j where E0 = 100 N/C…JEE Main 2014 (19 Apr, Shift 1)
A cone of base radius R and height h is located in a uniform electric field E parallel to…JEE Main 2014 (11 Apr, Shift 1)
The magnitude of the average electric field normally present in the atmosphere just above…JEE Main 2014 (9 Apr, Shift 1)
A spherically symmetric charge distribution is characterised by a charge density having…JEE Main 2014 (12 Apr, Shift 1)
What is the flux through a cube of side a if a point charge of q is at one of its corners?NEET 2012 (AIPMT, Prelims)