Electrostatics (Electric Charges and Fields, Potential) for JEE

• Field lines start on + and end on − charges
• Gauss's law: flux = q_enclosed / ε₀
• Field inside a conductor is zero; charge sits on the surface
• E = −dV/dr

• F = kq₁q₂/r², k = 1/(4πε₀)
• Infinite line: E = λ/(2πε₀r); infinite sheet: σ/(2ε₀)
• Point charge: V = kq/r; dipole on axis: E = 2kp/r³
• Potential energy U = kq₁q₂/r

Printable Electrostatics (Electric Charges and Fields, Potential) formula sheet: formulas, key ideas and traps on one page. Save it as a PDF for offline revision.

• Adding fields as scalars
• Using Gauss's law where there is no symmetry
• Forgetting that potential is a scalar and can be added directly

Appears in almost every JEE Main shift. Expect 1–2 questions. Gauss's law and potential due to systems of charges are very common.

Chapter names follow the current rationalised NCERT textbooks. Read these sections before solving PYQs.

Question. An electric dipole with dipole moment p = 2 × 10⁻⁶ C·m is placed at the origin with its axis along the x-axis (positive charge on the +x side). A point charge q = +1 μC is initially at point A located at (0, 3 cm) and is moved to point B at (4 cm, 0). Find the work done by the electric field of the dipole on the point charge.

This example was solved twice independently and both solutions agree.

Full-chapter free lectures picked from YouTube search results by views, from established JEE channels (mostly in Hinglish). Use the subtopic list to jump straight to the part you need (timestamps come from each video's own chapter list). Watch one, then solve PYQs the same day.

• ELECTRIC CHARGES AND FIELDS in One Shot: All Concepts & PYQs Covered | JEE Main & Advanced — JEE Wallah, 11:27:10
  Jump to a subtopic (17)

  • 00:00 Introduction
  • 04:26 Topics to be covered
  • 14:27 Charge
  • 22:46 Method of charging
  • 30:46 Coulomb law
  • 36:59 Problems on Electric force
  • 3:40:32 Vector form of Coulomb law
  • 4:00:46 Questions on Null point
  • 4:13:46 Coulomb’s law in medium
  • 4:54:30 Electric field
  • 6:47:00 Relation between Electric field and Force
  • 7:05:31 Electric field line
  • 7:12:41 Electric flux
  • 8:10:13 Gauss Law and its Application
  • 9:42:28 Irodov questions
  • 10:25:24 JEE Mains and Advanced PYQs
  • 11:27:08 Thank You Bacchon
• ELECTROSTATICS in 1 Shot - All Concepts Covered || JEE Main & Advanced || Class 12 — Lakshya JEE, 3:47:06
  Jump to a subtopic (12)

  • 00:00 Introduction
  • 03:16 Electric force
  • 22:20 Electric field
  • 56:36 Electric flux
  • 1:16:16 Electrostatic potential
  • 1:46:34 Equipotential surface
  • 1:55:44 Self-potential energy
  • 2:08:54 Energy density and electrostatic pressure
  • 2:09:43 Electric dipole
  • 2:51:10 Equilibrium and Torque
  • 3:10:05 Questions
  • 3:45:17 Thank You Bacchon

• 7 JEE Main 2026 PYQs on Electrostatics (Electric Charges and Fields, Potential), with solutions.
• Read the chapter in NCERT textbooks (official, free), then solve its NCERT Exemplar (official, free) questions.
• Chapter-wise past questions: JEE Main and Advanced PYQs and question bank.
• Timed practice tests: NTA Abhyas practice tests (official, free) and our free mock tests.
• See it move: interactive simulation.