Blog categorized as Electrostatics

Electrostatic energy 

Q- A point charge q is placed at each corner of a cube of edge l. Find electrostatic energy of the system of charges.


Solution:

April 03,2026 07:13 PM - Comment(s)
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Force due to a charge distribution

Q- Positive charge Q is distributed uniformly along the x-axis from x = 0 to x = a. A positive point charge q is located on the x-axis at x = a + r. 

(a) Calculate the x-component of the electric field produced by the charge distribution Q at points on the positive x-axis where x ...

February 28,2026 10:30 AM - Comment(s)
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Equivalent Capacitance

Q- Find the equivalent capacitance between points a and b in the combination of capacitors shown in Figure. C1 = 2.0 µF and C2 = 3.0 µF.


Solution:

February 02,2026 04:12 PM - Comment(s)
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Electrostatics: Capacitance

A spherical capacitor has two different layers of dielectrics between its plates. Their permittivity are ϵ1 for a < r < r0 and ϵ2 for r0 < r < b. Find the capacitance of this system by finding the total energy of the fields between the plates.

Solution:

October 29,2025 07:32 AM - Comment(s)
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