MCQ
Equipotentials at a great distance from a collection of charges whose total sum is not zero are approximately.
- ✓Spheres.
- BPlanes.
- CParaboloids.
- DEllipsoids.
✓
Answer
Correct option: A.
Spheres.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The phenomenon of radioactivity is
A red $LED$ emits light at $0.1$ watt uniformly around it. The amplitude of the electric field of the light at a distance of $1\ m$ from the diode is....$ Vm^{-1}$
→An electron $($mass $m)$ with an initial velocity $\text{v}=\text{v}_0\hat{\text{i}}(\text{v}_0>0)$ is in an electric field $\text{E}=-\text{E}_0\hat{\text{i}}(\text{E}_0=\text{constant}>0)$. It’s de Broglie wavelength at time $t$ is given by:
→An electric dipole is kept in the origin with charges along the $x$ axis, now choose the correct option,
→In the nucleus of ${ }_{11} N a^{23}$, the number of protons, neutrons and electrons are
→Which of the following is a mechanical wave?
A flake of glass (refractive index $1.5$) is placed over one of the openings of a double slit apparatus. The interference pattern displaces itself through seven successive maxima towards the side where the flake is placed. if wavelength of the diffracted light is $\lambda = 600\,nm$, then the thickness of the flake is........$nm$
→The distance between an object and the screen is 100 cm. A lens produces an image on the screen when placed at either of the positions 40 cm apart. The power of the lens is
What happens to the magnetic field at the centre of a circular current carrying coil if we double the radius of the coil keeping the current unchanged?
Letters $A , B , C$ and $D$ are written on a cardboard as shown in the figure below. The cardboard is kept at a suitable distance behind a transparent empty glass of cylindrical shape. If the glass is now filled with water, one sees an inverted image of the pattern on the cardboard when looking through the glass. Ignoring magnification effects, the image would appear as
→