Question
It is said that the separation between the two charges forming an electric dipole should be small. Small compared to what?

Answer

The separation between the two charges forming an electric dipole should be small compared to the distance of a point from the centre of the dipole at which the influence of the dipole field is observed.

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

Write Snell's law and derive its general equation.
Calculate the orbital period of the electron in the first excited state of hydrogen atom.
A barometer is constructed with its tube having radius 1.0mm. Assume that the surface of mercury in the tube is spherical in shape. If the atmospheric pressure is equal to 76cm of mercury, what will be the height raised in the barometer tube. The contact angle of mercury with glass $= 135^\circ$ and surface tension of mercury = 0.465N/m. Density of mercury $= 13600kg/m^3$.
Discuss induced emf produced in a conducting rod during its motion in direction perpendicular to uniform magnetic field with reference to Lorentz force and obtain its expression.
Distinguish between intrinsic and extrinsic semiconductors. Although in an extrinsic semiconductor $n_e \neq n_h$, yet it is electrically neutral. Why?
Two charges are placed in air at some distance:(a) If a glass slab whose dielectric constant is 8 is placed between them, then what will be the change in the magnitude of the force acting between them?(b) What will happen if the piece of brass is kept?
A potential difference of 12 volt is applied across the ends of 0.24 m long conductor. Calculate the drift velocity of the electrons. Mobility of electron is $5.6 \times 10^{-6} m^2 V^{-1} s^{-1}$.
Draw a diagram to show the standing pressure wave and standing displacement wave for the 3rd overtone mode of vibration of an open organ pipe.
Two identical bars, one of paramagnetic material and other of diamagnetic material are kept in a uniform external magnetic field parallel to it. Draw diagrammatically the modifications in the magnetic field pattern in each case.
As temperature increases, the viscosity of liquids decreases considerably. Will this decrease the resistance of an electrolyte as the temperature increases?