New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Electrostatics question

2016 · Shift 0 · Q51

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Main
Physics
Electrostatics
2016 · Shift 0 · Q51

Electrostatics question

2016 · Shift 0 · Q51

JEE MainPhysicsElectrostaticsMCQ+4 / −1

The region between two concentric spheres of radii

'a'

and

'b',

respectively (see figure), have volume charge density

\rho = {A \over r},

where

A

is a constant and

r

is the distance from the center. A such that the electric field in the region between the spheres will be constant, is : JEE Main 2016 (Offline) Physics - Electrostatics Question 218 English

JEE Main 2016 (Offline) Physics - Electrostatics Question 218 English

A
${{2Q} \over {\pi \left( {{a^2} - {b^2}} \right)}}$
B
${{2Q} \over {\pi \,{a^2}}}$
C
${Q \over {2\pi \,{a^2}}}$
D
${Q \over {2\pi \,\left( {{b^2} - {a^2}} \right)}}$

More from Electrostatics

A long cylindrical shell carries positives surfaces change $σ$ in the upper half and negative surface charge - $σ$ in the lower half. The electric field lines around the cylinder will look like figure given in : (figures are…2015 · MCQ
A uniformly charged solid sphere of radius $R$ has potential $V_{0}$ (measured with respect to $\infty$ ) on its surface. For this sphere the equipotential surfaces with potentials $\frac{3 V _{0}}{2}, \frac{5 V _{0}}{4}, \frac{3 V _{0}}{4}$ …2015 · Multiple correct
Assume that an electric field $E = 30 x^{2} i$ exists in space. Then the potential difference $V_{A} - V_{O},$ where $V_{O}$ is the potential at the origin and $V_{A}$ the potential at $x = 2 m$ is :2014 · MCQ
A charge $L$ is uniformly distributed over a long rod $O$ of length $L$ as shown in the figure. The electric potential at the point $O$ lying at distance $L$ from the end $A$ is Includes diagram2013 · MCQ
Two charges, each equals to $q,$ are kept at $x = - a$ and $x = a$ on the $x$ -axis. A particle of mass $m$ and charge $q_{0} = \frac{q}{2}$ is placed at the origin. If charge $q_{0}$ is given a small displacement $$\left( {y \lt \lt a}…2013 · MCQ
This question has statement- $1$ and statement- $2.$ Of the four choices given after the statements, choose the one that best describe the two statements. An insulating solid sphere of radius $R$ has a uniformly positive charge density $ρ$ …2012 · MCQ
In a uniformly charged sphere of total charge $E$ and radius $R,$ the electric field $E$ is plotted as function of distance from the center. The graph which would correspond to the above will be:2012 · MCQ
The electrostatic potential inside a charged spherical ball is given by $ϕ = a r^{2} + b$ where $r$ is the distance from the center and $a, b$ are constants. Then the charge density inside the ball is:2011 · MCQ