Physics
10 chapters · 78 sims live
Class 12 Chapters 1–8 — electricity, magnetism and electromagnetic waves — plus Class 11 laws of motion and work, energy & power — live and interactive, with the library growing every month.
For physics, chemistry & maths teachers · Class 11–12 · built on India’s NCERT syllabus
The moving picture you can’t draw on a whiteboard.
You spent years learning to explain what a blackboard cannot show. Viditra is the picture that finally moves — every field line, molecule and graph alive on your screen, driven by you, at the pace of your lesson. The simulation stays silent. Your voice is the lesson.
No sign-up needed — touch a real sim right in your browser.
96simulations live, in 2D and 3D
22 chaptersphysics, chemistry and maths, ready to teach today
Freefor every teacher until 31 March 2027
Why simulations
Diagrams freeze. Physics moves.
You’ve drawn this a hundred times — the circle, the arrows, the crosses — and said “imagine it moving.” Now it moves, at the pace of your explanation.
On your board
The teaching surface
Built for the way you actually teach.
Per-state controls — each step exposes only the slider it teaches. Try it.
- Full 3D, in your hands. Orbit around the field, look along the axis — see the physics from any angle, on a laptop or your classroom screen.
- Reorder the lesson mid-class. Drag simulation states to match the flow of your explanation.
- Draw on the physics itself. A pen and whiteboard sit on top of the live simulation.
- One control at a time. Each state shows only the slider it teaches — the full set unlocks at the end.
- Watch it click. The moment the physics starts to move, you see the idea land — that look on a student’s face is why you teach.
- Accurate by construction. Every frame is computed from the equations — never hand-drawn animation.
How it works
Three steps to a lesson they’ll remember.
- 1Pick a concept
Organized by chapter — built on India’s NCERT syllabus for CBSE, ISC and the state boards.
- 2Teach it live
Step through states, draw, pause, reorder.
- 3Show, don’t tell
Accurate motion answers the “why” words can’t.
Physics, chapter by chapter
Find the topic you’re teaching this week.
Organized the way physics is taught in Class 11–12 on India’s NCERT syllabus — CBSE, ISC and the state boards — not a pile of demos, but chapters built deep enough to teach start to finish. Ten chapters are ready to teach now — 78 simulations — and the library grows every month.
Teach today Class 12 · Electricity, Magnetism & EM Waves
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Ch 1Electric Charges & Fields11 sims
Coulomb’s law · field of a point charge · force on a charge · dipole field · charge distributions · electric flux · Gauss’s law — sphere, line, sheet & solid sphere
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Ch 2Electrostatic Potential & Capacitance9 sims
What potential means · potential of a point charge · dipole potential · potential of a system of charges · equipotential surfaces · potential energy of a system · potential energy in an external field · the parallel-plate field · capacitance
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Ch 3Current Electricity13 sims
Drift velocity · Ohm’s law · resistivity · combinations of resistors · EMF · internal resistance · electrical power · Kirchhoff’s junction & loop rules · combination of cells · Wheatstone bridge · metre bridge · potentiometer
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Ch 4Moving Charges & Magnetism9 sims
The magnetic field B · force on a moving charge · the right-hand rule · why magnetic force does no work · circular & helical motion in a uniform field · why the cyclotron period doesn’t depend on speed · force between parallel currents · force on a current-carrying wire
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Ch 5Magnetism & Matter5 sims
The bar magnet as a dipole · Gauss’s law for magnetism · a bar magnet in a uniform field · Earth’s magnetism · magnetisation & magnetic intensity
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Ch 6Electromagnetic Induction6 sims
Magnetic flux · Faraday’s law · motional EMF · the AC generator · eddy currents · inductance
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Ch 7Alternating Current8 sims
AC through a resistor · phasors · AC through an inductor · AC through a capacitor · the series LCR circuit · power factor · LC oscillations · the transformer
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Ch 8Electromagnetic Waves2 sims
Displacement current · how an electromagnetic wave travels — E and B in phase, at right angles, moving at the speed of light
Teach today Class 11 · Mechanics
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Laws of Motion10 sims
Newton’s first law · free-body diagrams · the normal force · connected bodies · Newton’s second law · tension · a block on an incline · Newton’s third law · friction · rolling friction
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Work, Energy & Power5 sims
The work–energy theorem · work done by a constant force · positive, negative & zero work · kinetic energy · conservative vs non-conservative forces
Teaching a chapter that isn’t here yet? Email — we build next what teachers ask for first.
Subjects
Physics, chemistry and maths.
Chemistry
6 chapters · 12 sims live
Atomic structure, chemical bonding and molecular shapes, states of matter, equilibrium and reaction rates — molecules and orbitals in 3D you can turn and change.
Mathematics
6 chapters · 6 sims live
Graphs of functions, the unit circle and the sine wave, the derivative, the definite integral, solids of revolution and lines and planes in 3D.
About
Made with teachers, in classrooms.
Every physics simulation is shaped by professors teaching real students, reviewed state by state, before it ships.
The physics is accurate by construction: rendering engines compute each frame from the governing equations, in real time. Nothing is key-framed, nothing is approximated art — so what your students see is what the mathematics says.
And it follows the NCERT backbone — the physics doesn’t change by board, so the same simulation teaches CBSE, ISC and state board classrooms alike. Your lesson stays yours; the simulation is the picture inside it.
Teachers bring the creativity. Viditra brings the visibility.
For schools and coaching centres.
Every teacher can use Viditra free until 31 March 2027. If you run a school, junior college or coaching centre and want it for all your teachers, email us and we will set it up with you.
Contact usCovers your own live classes — online, offline, projector, smart board. Publishing the simulations in public content (YouTube, social media, recorded courses) and white-label use need a separate licence — ask us.
Start teaching with it today.
Free for every teacher until 31 March 2027. The full library. No card, no form. Sign in with Google and you are teaching with these sims in the next minute.
Start teaching free