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Electromagnetism (Essentials) - Class 12th

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Welcome, learners!

Watch an introduction video1 minute 54 seconds
It is often "said" that Physics is all around us. This course aims to "show" you precisely that. We uncover electromagnetism by looking at things around us and answering the hows, whys, and whats to many questions you might have wondered about yourself! Let's go!
Start learning

Welcome, learners!

It is often "said" that Physics is all around us. This course aims to "show" you precisely that. We uncover electromagnetism by looking at things around us and answering the hows, whys, and whats to many questions you might have wondered about yourself! Let's go!
Start learning
Watch an introduction video1 minute 54 seconds

Unit 1: Welcome to Electromagnetism essentials

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Welcome to electromagnetism essentials: Welcome to Electromagnetism essentials

Unit 2: How a microwave oven works?

Introduction: How a microwave oven works?Electric charges- what are they? And how do they behave?: How a microwave oven works?Why do balloons rubbed with hair stick to walls?: How a microwave oven works?
Coulomb's law and why it's easy to beat gravity: How a microwave oven works?Electric fields - How does one charge know of the presence of other charges?: How a microwave oven works?What are electric dipoles and how do they behave in electric fields?: How a microwave oven works?

Unit 3: Maxwell's first equation - an alternative to Coulomb's law

Introduction: Maxwell's first equation - an alternative to Coulomb's lawElectric field due to multiple charges - Superposition!: Maxwell's first equation - an alternative to Coulomb's lawElectric field due to continuous charge distributions - the long way!: Maxwell's first equation - an alternative to Coulomb's law
Imagining electric field as a flow - Electric flux: Maxwell's first equation - an alternative to Coulomb's lawGauss's law of electricity: Maxwell's first equation - an alternative to Coulomb's lawApplying Gauss's law - an easier way to find electric fields: Maxwell's first equation - an alternative to Coulomb's law

Unit 4: The sun shouldn't be alive, here's why!

Introduction: The sun shouldn't be alive, here's why!Electric potential and potential difference: The sun shouldn't be alive, here's why!Conceptual problems on electric potential: The sun shouldn't be alive, here's why!
Potential due to charges: The sun shouldn't be alive, here's why!Potential energy of system of charges: The sun shouldn't be alive, here's why!

Unit 5: How are sparks created? And how do we shield ourselves from them?

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Introduction: How are sparks created? And how do we shield ourselves from them?Why are sparks created?: How are sparks created? And how do we shield ourselves from them?What happens to an aeroplane during a lightning strike?: How are sparks created? And how do we shield ourselves from them?

Unit 6: How many toy batteries would it take to start a real car?

What electrons do when current flows? - They don't simply march!: How many toy batteries would it take to start a real car?Ohm's law: How many toy batteries would it take to start a real car?Why can birds sit on a high voltage wire?: How many toy batteries would it take to start a real car?
Simplifying resistor networks: How many toy batteries would it take to start a real car?How many toy batteries would it take to start a real car?: How many toy batteries would it take to start a real car?

Unit 7: How touchscreens work?

How do condenser microphones work?: How touchscreens work?How to improve capacitors?: How touchscreens work?How touchscreens work? - Combination of capacitors: How touchscreens work?
How camera flashes work?: How touchscreens work?

Unit 8: How to smash atoms together?

Magnetic force on a charge: How to smash atoms together?Why do we observe beautiful night sky patterns near the poles?: How to smash atoms together?How to separate isotopes and measure the age of fossils?: How to smash atoms together?
How to speed up atoms to smash them together?: How to smash atoms together?

Unit 9: How do electrons push large needles?

From force on solo electrons to force on entire conductors: How do electrons push large needles?How does an electric motor work?: How do electrons push large needles?How does a moving coil galvanometer work?: How do electrons push large needles?

Unit 10: Why are magnets magnetic? And why are other things not?

Magnetism of magnets and wires: Why are magnets magnetic? And why are other things not?Force between two wires - defining a fundamental unit: Why are magnets magnetic? And why are other things not?Magnetism of loops: Why are magnets magnetic? And why are other things not?
Why some materials are not magnetic?: Why are magnets magnetic? And why are other things not?Why is water repelled by magnets?: Why are magnets magnetic? And why are other things not?How do electromagnets work?: Why are magnets magnetic? And why are other things not?Magnetism of the Earth: Why are magnets magnetic? And why are other things not?

Unit 11: How do we generate electricity?

Generating current without a battery: How do we generate electricity?Magnetic field as a flow - Magnetic flux: How do we generate electricity?Faraday's law of induction - a new Maxwell's equation: How do we generate electricity?
Why current is induced in only one possible direction?: How do we generate electricity?Why does induction occur in moving objects?: How do we generate electricity?Why does induction occur in stationary objects too?: How do we generate electricity?AC generator: How do we generate electricity?

Unit 12: How wireless charging and transformers work?

How wireless charging works?: How wireless charging and transformers work?How induction cooktops work?: How wireless charging and transformers work?How transformers work?: How wireless charging and transformers work?
Inertia of charging: How wireless charging and transformers work?

Unit 13: How radios and cellphones catch signals from air?

The electronic components inside every radio and cellphone: How radios and cellphones catch signals from air?An easy way to visualise current and voltages: How radios and cellphones catch signals from air?The circuit that can catch signals: How radios and cellphones catch signals from air?

Unit 14: The remaining Maxwell's equation and understanding light!

An easier way to find magnetic fields: The remaining Maxwell's equation and understanding light!Maxwell's correction to Ampere's law: The remaining Maxwell's equation and understanding light!Compiling Maxwell's equations - How light works?: The remaining Maxwell's equation and understanding light!
Properties of EM waves: The remaining Maxwell's equation and understanding light!
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