A charge q is placed at the centre of th...

A charge q is placed at the centre of the line joining two exactly equal positive charges Q. the system of three charges will be in equilibrium, if q is equal to:

`-Q//4`

`+Q`

`-Q`

Q/2

Text Solution

Verified by Experts

Topper's Solved these Questions

TEXUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|195 Videos
TEXTUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|507 Videos
UNIT TEST -06
MODERN PUBLICATION|Exercise EXERCISE|461 Videos

Similar Questions

Explore conceptually related problems

A charge q is placed at the centre of line joining two equal charges Q. Show that the system of three charges will be in equilibrium if q = -Q/4

Two identical point charges of charge Q are kept at a distance r from each other. A third point charge is placed on the line joining the above two charges, such that all the three charges are in equilibrium. Calculate the magnitude and location of the thrid charge.

A charge q is placed at the centre of a cube of side l . What is the electric flux passing through two opposite faces of the cube?

A point charge q is placed at the origin. How does the electric field due to the charge vary with distance r from the origin?

Three charges -q, Q and -q are placed at equal distances on a striaght line. If the potential energy of the system of three charges is zero, then what is the ratio of Q:q?

Three charges each of value q are placed the corners of an equilaterla triangle. A fourth charge Q is placed at the centre of the triangle. For what value of Q, will the charges remain stationary? In this situation, how much work is done in removing the charges to infinity?

Three charges each of value q are placed the corers of an equilaterla triangle. A fourth charge Q is placed at the centre of the triangle. If Q = -q, will the charges at the corners move towards the centre or fly away from it?

A point charge q is placed at O as shown in figure. Is V_P - V_Q positive or negative when q

Graphically, represent the variation of electric field due to a point charge Q with magnitude of charge Q

MODERN PUBLICATION-TEXUAL QUESTIONS -EXERCISE

The unit of permittivity of free space (E0) is :
Text Solution
|
When air is replaced by a dielectric medium of dielectric constant K, ...
Text Solution
|
A charge q is placed at the centre of the line joining two exactly equ...
Text Solution
|
Point charges + 4q, -q and +4 q are kept on the X-axis at points x = 0...
Text Solution
|
There is an electric field E in x-direction. If the work done on movin...
Text Solution
|
A point Q lies on the perpendicular bisector of an electrical dipole o...
Text Solution
|
Dedce the expression for the torque acting ona dipole of dipole moment...
Text Solution
|
A semi-cricular arc of radius a is charged unformly and the charge per...
Text Solution
|
A point charge +q is placed at the mid point of a cube of side b. The ...
Text Solution
|
A charge Q isenclosed by a Gaussian spherical surface of radius R. If ...
Text Solution
|
A capacitor of capacitance C is charged to a potential V and is placed...
Text Solution
|
A charge Q is placed at the corner of a cube. The electric flux throug...
Text Solution
|
An electric charge q is placed at one of the corner of a cube of side ...
Text Solution
|
Some charge is being given to a conductor. Then, its potential.
Text Solution
|
The electric potential at a point in free space due to charge Q coulom...
Text Solution
|
Three concentric spherical metal sheels A,B and C of radii a,b and c a...
Text Solution
|
In bringing an electron towards another electrons, the electrostatic p...
Text Solution
|
Two metallic sphers of radii 1 cm and 2 cm are given charges 10^-2C an...
Text Solution
|
Three capacitors each of cpacitance C and breakdown voltage V are join...
Text Solution
|
Three capacitors each of capacitance 4muF are to be connected in such ...
Text Solution
|