Home
Class 12
PHYSICS
Three point charges, each with charge q ...

Three point charges, each with charge q and mass 'm', are connected by three strings of equal length 'e whose other end is connected to a fixed point P. They form an equilateral triangle of side 'a' in a horizontal plane. The tension in each string will be

A

`sqrt((mg)^2-(q^2/(4piepsilon_0a^2)sqrt3)^2)`

B

`(mgl)/sqrt(l^2-a^2//3)`

C

`(3q^2)/(4piepsilon_0a^2)`

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PHYSICS PART2

    FIITJEE|Exercise Section (I) : Subjective|4 Videos

  • PHYSICS PART2

    FIITJEE|Exercise Section (II) : MCQ|27 Videos

  • PHYSICS PART-III

    FIITJEE|Exercise NUMERICAL BASED QUESTIONS DECIMAL TYPE|11 Videos

  • ROTATIONAL MECHANICS

    FIITJEE|Exercise COMPREHENSION - IV|2 Videos

Similar Questions

Explore conceptually related problems

Three charges each of 8 mu C are fixed on vertices of an equilateral triangle of side 1cm. The force on a unit test charge kept at centroid of the triangle will be

A piece of string is 30 cm long. What will be the length of each side if the string is used to form : an equilateral triangle ?

Calculate the electrostatic potential energy for a system of three point charges q placed at the corners of an equilateral triangle of side ‘a’.

Three charges each 20muC are placed at the corners of an equilateral triangle of side 0.4m The potential energy of the system is

Three paricles, each of mass m and carrying a charge q each, are suspended from a common pointby insulating massless strings each of length L. If the particles are in equilibrium and are located at the corners of an equilateral triangle of side a, calculate the charge q on each particle. Assume Lgtgta .

Three identical point charges, each of mass m and charge q, hang from three strings as shown in fig. The value of q in term of m, L, and q is

A particle of mass m and charge q is fastened to one end of a string of length. The other end of the string is fixed to the point O. The whole sytem liles on as frictionless horizontal plane. Initially, the mass is at rest at A. A uniform electric field in the direction shown in then switfched on. Then

Two indentical pith balls, each carrying charge q, are suspended from a common point by two strings of equal length l. Find the mass of each ball if the angle between the strings is 2theta in equilibrium.

Three point masses 'm' each are placed at the three vertices of an equilateral traingle of side 'a'. Find net gravitational force on any point mass.

Three identical point objects each of mass m are placed at the vertices of an equilateral triange of side l . What is the gravitational potential at the centre of the equilateral triangle due to the point masses?