Differentiation for physics (Prerequisite) | Khan Academy Certain ideas in physics require the prior knowledge of differentiation The big idea of differential calculus is the concept of the derivative, which essentially gives us the rate of change of a quantity like displacement or velocity
Parallel resistors (derivation) (video) | Khan Academy Discover the fascinating world of parallel resistors in electrical circuits! Learn how to identify parallel resistors, understand the concept of shared nodes and voltage, and apply Ohm's law to calculate equivalent resistance Master the formula for parallel resistors and enhance your circuit analysis skills with real-life examples
Current electricity | NCERT Physics Class 12 - Khan Academy Circuits make computers, digital cameras, and video games possible Circuits are driving an unprecedented rate of change in how we live In this topic you'll learn about the physics behind the electronic devices we use
Moving charges and magnetism | NCERT Physics Class 12 - Khan Academy Magnetic fields are extremely useful The magnetic field of the Earth shields us from harmful radiation from the Sun, magnetic fields allow us to diagnose medical problems using an MRI, and magnetic fields are a key component in generating electrical power in most power plants In this topic you'll learn about the forces, fields, and laws that makes these and so many other applications possible
Derivative as a concept (video) | Khan Academy Learn about derivatives as the instantaneous rate of change and the slope of the tangent line This video introduces key concepts, including the difference between average and instantaneous rates of change, and how derivatives are central to differential calculus Master various notations used to represent derivatives, such as Leibniz's, Lagrange's, and Newton's notations