Khan Academy: 2757 products
Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.
All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …
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Class 12 Physics (India): Band theory of solids
To understand electrical properties of solids, we need to use Band theory. In this video, we will explore this new theory called Band theor…
VideoFree8
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Class 12 Physics (India): Kirchhoff's voltage law
Kirchhoff's Voltage Law says if you travel around any loop in a circuit, the voltages across the elements add up to zero. Class 12 Physics …
VideoFree7 minutes
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Class 11 Physics (India): Volume expansion coefficient
Let's explore the calculation of volume expansion due to temperature change. Good news is we don't need more physics. We can just use the s…
VideoFree5
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Class 11 Physics (India) - Hindi: Standing waves on strings (Hindi)
Ram explains how and why standing waves occur, and well as how to determine the wavelengths for a standing wave on a string. Class 11 Physi…
VideoFree17
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Class 11 Physics (India): Conservation of energy
Using the law of conservation of energy to see how potential energy is converted into kinetic energy Class 11 Physics (India) Let's learn, …
VideoFree10 minutes
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Class 11 Physics (India) - Hindi: Definition of Amplitude and Period (Hindi)
Ram defines the terms amplitude and period for simple harmonic motion and shows how to find them on a graph. Class 11 Physics (India) - Hin…
VideoFree16
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Class 11 Physics (India): Intro to vectors and scalars
The difference between vectors and scalars. Introduction to distance, displacement, speed, and velocity. Class 11 Physics (India) Let's le…
VideoFree9 minutes
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Class 11 Physics (India): Moments
Introduction to moments Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinemat…
VideoFree14 minutes
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Electrical engineering: Node voltage method (step 5)
Last step of the Node voltage method for analyzing circuits: Solve the system of simultaneous equations Electrical engineering Learn about …
VideoFree6 minutes
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Health and medicine: Neurotransmitter release
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree4 minutes
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Health and medicine: Neuron action potential mechanism
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Class 11 Physics (India): Ultrasound medical imaging
Ultrasound medical imaging (also known as sonography) is a diagnostic imaging tool that uses high-frequency sound waves to create images of…
VideoFree6 minutes
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Class 11 Physics (India): Doppler effect: reflection off a moving object
Does the doppler effect still apply when sound is being reflected off a moving object? Class 11 Physics (India) Let's learn, practice, and …
VideoFree8 minutes
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Class 11 Physics (India) - Hindi: Deriving displacement as a function of time, acceleration, and velocity (Hindi)
Deriving displacement as a function of time, constant acceleration and initial velocity. Class 11 Physics (India) - Hindi To help students …
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Class 11 Physics (India): How tall can mountains get?
Is there is a limit to the height of a mountain? Let's see what the height of a mountain has got to do with elastic properties of a materia…
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