jee_main_2025_08_april_evening - Electrostatics Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #1 Electric Potential and Potential Energy
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Work done in moving a test charge between two points inside a uniformly charged spherical shell is zero, no matter which path is chosen. Reason R: Electrostatic potential inside a uniformly charged spherical shell is constant and is same as that on the surface of the shell. In the light of the above statements, choose the correct answer from the options given below:
Start Practice →
QUESTION #4 Conductors and Corona Discharge
Electric charge is transferred to an irregular metallic disk as shown in figure. If sigma_1, sigma_2, sigma_3 and sigma_4 are charge densities at given points then, choose the correct answer from the options given below: {{IMG1}} (A) sigma_1 > sigma_3; sigma_2 = sigma_4 (B) sigma_1 > sigma_2; sigma_3 > sigma_4 (C) sigma_1 > sigma_3 > sigma_2 = sigma_4 (D) sigma_1 < sigma_3 < sigma_2 = sigma_4 (E) sigma_1 = sigma_2 = sigma_3 = sigma_4
Start Practice →
QUESTION #7 Gauss's Law
An infinitely long wire has uniform linear charge density lambda = 2mathrm~nC/m. The net flux through a Gaussian cube of side length sqrt3mathrm~cm, if the wire passes through any two corners of the cube, that are maximally displaced from each other, would be xmathrm~Ncdotmathrmm^2cdotmathrmC^-1, where x is: [Neglect any edge effects and use frac14pivarepsilon_0 = 9times 10^9 SI units]
Start Practice →
QUESTION #9 Electric Charge and Properties
Two metal spheres of radius R and 3R have same surface charge density sigma. If they are brought in contact and then separated, the surface charge density on smaller and bigger sphere becomes sigma_1 and sigma_2, respectively. The ratio fracsigma_1sigma_2 is:
Start Practice →
QUESTION #23 Capacitance
Space between the plates of a parallel plate capacitor of plate area 4mathrm~cm^2 and separation of (d) 1.77mathrm~mm, is filled with uniform dielectric materials with dielectric constants (3 and 5) as shown in figure. Another capacitor of capacitance 7.5mathrm~pF is connected in parallel with it. The effective capacitance of this combination is ________ mathrm~pF. {{IMG1}} (Given varepsilon_0 = 8.85times 10^-12mathrm~F/m)
Start Practice →
Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
YOUR FIRST PREP STEP STARTS HERE

We Map Every Repeating Question in Competitive Exams.

Say goodbye to generic mock test fatigue. RankBit uses smart analysis to group past exam questions into their foundational Repeating Question Types. Find chapter weightage, track repeating questions, and score higher with targeted practice.

Select Your Target Exam

Choose an exam track below to find formulas per chapter and patterns.

Syncing Exam Intelligence

Mapping formulas and patterns across all tracks…

PATH A — FULL LENGTH PRACTICE

Full Mock Test Hub

Simulate real NTA exam conditions with fully tracked mocks. Time yourself against past papers.

Now Live Open
PATH B — TARGETED PRACTICE

Topic-wise Practice Hub

Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

Loading Questions... Browse Topics

Exam Analysis Tools

Chapter weightage trends and topic-wise practice — all mapped from past shift papers.

Year-wise PYQ

Chapter Weightage & Trends

See high-yield chapters, year-wise counts and the frequency-based chance each topic repeats next exam.

Weightage Board Open
Targeted PYQs

Topic-wise Practice Hub

Every past-year question for a chapter pulled from all papers, with its key formulas alongside.

One chapter at a time Open
Latest from the Blog
View all →

Loading articles...