Advertisements
Advertisements
प्रश्न
Consider two identical point charges located at points (0, 0) and (a, 0).
Is there a point on the line joining them at which the electric potential is zero?
उत्तर
Potential can never be zero, not ever. Given that it is a scalar amount and added everywhere. It is therefore never zero.
APPEARS IN
संबंधित प्रश्न
What is the amount of work done in moving a point charge Q around a circular arc of radius ‘r’ at the centre of which another point charge ‘q’ is located?
A charged oil drop weighing 1.6 x 10-15 N is found to remain suspended in a uniform electric field of intensity 2 x 103 Nc-1. Find the charge on the drop.
A hemisphere is uniformly charged positively. The electric field at a point on a diameter away from the centre is directed ______.
A solid sphere of radius R has a charge Q distributed in its volume with a charge density ρ = kra, where k and a are constants and r is the distance from its centre. If the electric field at r = `"R"/2` is `1/8` times that at r = R, the value of a is ______.
An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance h. The time of fall of the electron, in comparison to the time of fall of the proton is ______.
Let there be a spherically symmetric charge distribution with charge density varying as `rho("r") = rho_0(5/4 - "r"/"R")` upto r = R, and `rho("r") = 0` for r > R, where r is the distance from the origin. The electric field at a distance r(r < R) from the origin is given by _________.
Electric lines of force about negative point charge are ______
A charge of 4 × 10- 9c is distributed uniformly over the circumference of a conducting ring of radius 0.3 m. Calculate the field intensity at a point on the axis of the ring at 0.4 m from its center and also at the center?
An isolated point charge particle produces an electric field `vecE` at a point 3 m away from it. The distance of the point at which the field is `vecE/4` will be ______.
