Answer :


Charges on ball = q

Angle between the balls = 2θ

Length of the strings = l

Let the magnitude of Tension be T. Let the electric force between the pitch balls be Fe. Let the mass of each pitch ball be m. The free body diagram is as follows:

Now, let the distance between the two charges be r.

By trigonometry,

By Coulomb’s law, the electric force id given by:

Where ϵ0 is the permittivity of free space

q1 and q2 are the magnitude of charges

r is the distance of separation between the charges

Here, q1 =q2 = q.

Now, let us find the magnitude of the electric force, Fe :

Substituting eq (1), we get

As the system is in equilibrium, all the forces in each direction must sum up to zero.

Substituting (2) in (3), we get

Substituting (4), we get

Substituting (5) in (6), we get

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

(a) Describe briePhysics - Board Papers

Repeat the previoHC Verma - Concepts of Physics Part 2

There is another Physics - Exemplar

Does the charge gPhysics - Board Papers