Fourier Series is a mathematical technique using which any desired waveform or periodic function can be generated by a successive addition of sines and cosines of suitable amplitudes and frequency. In this video, I provide a brief idea about what is Fourier series. Then I calculate the Fourier coefficients corresponding to that of a Square Wave. Finally I show a simple visualization of how adding successive sine terms in the obtained fourier series leads to a Sum that approximates towards a square or pulse wave ▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱ Support💖https://www.patreon.com/dibyajyotidas Donate🤝🏻https://paypal.me/FortheLoveofPhysics Telegram - https://t.me/FortheLoveofPhysicsYT ▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱