@seleniumed: Every power plant on the planet runs because of this one equation. Faraday's Law says when the magnetic flux through a wire loop changes, it creates a voltage. Move a magnet near a coil and you get electricity - that is how every generator works. The induced EMF equals the negative rate of change of magnetic flux, and the negative sign is Lenz's Law telling you the current fights back against the change. Magnetic flux is just B times A times cos(theta) for a uniform field. Change any of those - the field strength, the area, or the angle - and you get an induced voltage. Follow @seleniumed for more physics! #tiktok #viral #physics #electromagnetism #faradayslaw

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Saturday 20 June 2026 03:46:27 GMT