MCQ
For a spherical shell
  • A
    If potential inside it is zero then it necessarily electrically neutral
  • B
    electric field in a charged conducting spherical shell can be zero only when the charge is uniformly distributed.
  • C
    electric potential due to induced charges at a point inside it will always be zero
  • none of these

Answer

Correct option: D.
none of these
d

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Water is flowing steadily through a horizontal tube of non uniform cross-section. If the pressure of water is $4$ $\times $ $10^4$ $N/m^2$ at a point where cross-section is $0.02$ $m^2$ and velocity of flow is $2$ $m/s$, what is pressure at a point where cross-section reduces to $0.01$ $m^2$.
A magnet of magnetic moment $ 20 $ $C.G.S.$  units is freely suspended in a uniform magnetic field of intensity $0.3 $ $ C.G.S.$ units. The amount of work done in deflecting it by an angle of $30°$ in $ C.G.S.$  units is
Compton effect is associated with
In the given figure, a battery of emf $E$ is connnected across a conductor $P Q$ of length $'Y'$ and different area of cross-sections having radii $r_{1}$ and $r_{2}\left(r_{2}\,<\,r_{1}\right)$.

Choose the correct option as one moves from $P$ to $Q$ :

With what minimum velocity should block be projected from left end $A$ towards end $B$ such that it reaches the other end $B$ of conveyer belt moving with constant velocity $v$. Friction coefficient between block and belt is $\mu$ .
Two identical coaxial circular loops carry current $i$ each circulating in the clockwise direction. If the loops are approaching each other, then
A particle moves in a circular path of radius $r$ with speed $v.$ It then increases its speed to $2\,v$ while travelling along the same circular path. The centripetal acceleration of the particle has changed by a factor of
A man is swinging on a swing made of $2$ ropes of equal length $L$ and in direction perpendicular to the plane of paper. The time period of the small oscillations about the mean position is
A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long tube is
A person wear normal spectacles in which the distance of glasses and eyes is approximately $2\, cm ,$ then power required is $-5 \,D$. If he wears contact lens, then the required power is ......... $D$