Six point charges are placed at vertices of a regular hexagon of side a as shown. If E represents el

English

Gujarati

Hindi

2. Electric Potential and Capacitance

medium

Six point charges are placed at the vertices of a regular hexagon of side $a$ as shown. If $E$ represents electric field and $V$ represents electric potential at $O$, then

A

$E=0$ but $V \neq 0$

B

$E \neq 0$ but $V=0$

C

$E=0$ and $V=0$

D

$E \neq 0$ and $V \neq 0$

Solution

(c)

$V=\frac{3 k q}{r}-\frac{3 k q}{r}=0$

from the figure

Standard 12

Physics

Share

Similar Questions

A point charge of magnitude $+ 1\,\mu C$ is fixed at $(0, 0, 0) $. An isolated uncharged spherical conductor, is fixed with its center at $(4, 0, 0).$ The potential and the induced electric field at the centre of the sphere is

hard

(JEE MAIN-2013)

The two thin coaxial rings, each of radius $'a'$ and having charges $+{Q}$ and $-{Q}$ respectively are separated by a distance of $'s'.$ The potential difference between the centres of the two rings is :

hard

(JEE MAIN-2021)

A solid sphere of radius $R$ is charged uniformly. At what distance from its surface is the electrostatic potential half of the potential at the centre?

hard

Figure shows three circular arcs, each of radius $R$ and total charge as indicated. The net electric potential at the centre of curvature is

medium

An infinite number of charges each equal to $0.2\,\mu C$ are arranged in a line at distances $1\,m, 2\,m, 4\,m, 8\,m……$ from a fixed point. The potential at fixed point is ……$kV$

medium