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 11 Physics (India) - Hindi: Centre of mass (Hindi)
Ram gives a conceptual understanding of what center of mass means. Class 11 Physics (India) - Hindi To help students who prefer to learn by…
VideoFree10
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Class 11 Physics (India) - Hindi: Rotational kinetic energy (Hindi)
In this video Ram explains what rotational kinetic energy is and how to calculate it. Class 11 Physics (India) - Hindi To help students who…
VideoFree16
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Physics: Mach numbers
We can measure speeds relative to the speed of sound Physics Learn about the basic principles that govern the physical world around us. Sol…
VideoFree4 minutes
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Class 12 Physics (India): Triboelectric effect and charge
Learn the physics behind why a balloon clings to things after you rub it on a sweater Class 12 Physics (India) It is now time to dive deepe…
VideoFree12 minutes
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Electrical engineering: Euler's cosine wave
A cosine wave emerges from Euler's Formula. Music, no narration. Animated with d3.js. Electrical engineering Learn about electricity, circu…
VideoFree3 minutes
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Class 10 Physics (India): Presbyopia
Let's explore what are the symptoms and causes of Presbyopia. We will also see how bifocals correct them. Created by Mahesh Shenoy Class 10…
VideoFree6
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Class 11 Physics (India): Direction of vectors from components: 3rd & 4th quadrants
Sal finds the direction angle of a vector in the third quadrant and a vector in the fourth quadrant. Class 11 Physics (India) Let's learn, …
VideoFree7
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Electrical engineering: Euler's formula
Euler's formula relates the complex exponential to the cosine and sine functions. This formula is the most important tool in AC analysis. I…
VideoFree9 minutes
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Physics: Compass interactions
If we float two identically magnetized needles they will always orient themselves in the same way. Why? Physics Learn about the basic princ…
VideoFree1 minute
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Class 12 Physics (India): Active, saturation, & cutoff state of NPN transistor
Let's explore the three different behaviours the transistor exhibits. These are pretty important for electronic engineers to design any cir…
VideoFree12
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Class 10 Physics (India): Thin lens formula
Let's derive the thin lens formula which connects the object distance to the image distance. Class 10 Physics (India) Let's explore the mys…
VideoFree10
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Electrical engineering: Finding Fourier coefficients for square wave
Finding Fourier coefficients for a square wave Electrical engineering Learn about electricity, circuit theory, and introductory electronics…
VideoFree11 minutes
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Class 11 Physics (India): Components of vectors
Sal finds the x and y-components of a vector given its graph. Class 11 Physics (India) Let's learn, practice, and master topics of class 11…
VideoFree3
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Class 11 Physics (India): Worked example: slope from two points
Find the slope of the line that goes through the ordered pairs (4,2) and (-3, 16). Class 11 Physics (India) Let's learn, practice, and mast…
VideoFree7
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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