https://www.khanacademy.org/science/in-in-class9th-physics-india/in-in-work-energy/in-in-power/v/power-work-energy-physics-khan-academy 2020-06-23T07:22:40Z Power Let's explore the meaning of power (rate of doing work) in physics.  David SantoPietro video https://cdn.kastatic.org/googleusercontent/14DowYKTOUJriOj1nfocq89GIng2pdsZhrXMZlyVbf07ocCVuHQ0LFZFhE2lK6h23LrrQdYhmRnherhUeqpZvz-S Power Let's explore the meaning of power (rate of doing work) in physics.  https://cdn.kastatic.org/ka-youtube-converted/u5OJ--Zk0FQ.mp4/u5OJ--Zk0FQ.mp4 169 Power https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:work-and-energy/x345505a97fc4a662:power/e/power-mh 2025-03-03T09:10:51.294275632Z Power Let's solve some questions vibhor exercise https://www.khanacademy.org/science/in-in-class10th-physics/in-in-electricity/in-in-commercial-unit-of-electrical-energy/v/commercial-unit-of-electrical-energy 2020-06-23T07:22:43Z Commercial unit of electrical energy Let's explore the unit of electrical energy (kiloWatthour) that we use for commercial purpose. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/QyfWD3cn7QymsYHag0Un57pkk32FjGIGAdc5c_bx0dhvlBa-oEcWWUYdcH3IdsAkpK_XLwjumMIL_CDTNiamUjEH Commercial unit of electrical energy Let's explore the unit of electrical energy (kiloWatthour) that we use for commercial purpose. https://cdn.kastatic.org/ka-youtube-converted/y8j4t3JtbWQ.mp4/y8j4t3JtbWQ.mp4 550 Power https://www.khanacademy.org/science/in-in-class10th-physics/in-in-electricity/in-in-commercial-unit-of-electrical-energy/v/solved-example-cost-of-operation-of-electrical-device 2020-06-23T07:22:40Z Solved example - Cost of operation of electrical device Let's calculate the cost of operating an electrical device for a specific duration.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/o3ebZOhWF4ogocMAUbY73-RXDyUN2YuYGe0aFGlgUutIcSLz5keoaVkys4MNriASDctvMNCvm74sRrTqoVatlps Solved example - Cost of operation of electrical device Let's calculate the cost of operating an electrical device for a specific duration.  https://cdn.kastatic.org/ka-youtube-converted/_A1ww8WQhu0.mp4/_A1ww8WQhu0.mp4 571 Power https://www.khanacademy.org/science/in-in-class10th-physics/in-in-electricity/in-in-commercial-unit-of-electrical-energy/e/finding-cost-of-electrical-operation 2026-04-07T23:36:17.218592739Z Finding cost of electrical operation Let's practice some problems to understand how to calculate the cost of operating electrical devices over certain periods of time. exercise