How do Condenser Microphones work? | Electric potential and Capacitance | Physics | Khan Academy

In this video, we explore one cool application of parallel plate capacitors - Condenser microphones! 00:00 Introduction 00:33 Basic function of a microphone 01:16 What's inside a condenser microphone? 01:58 Sectional view of a condenser microphone 02:43 How do we get electricity out of sound? 04:14 How do we get a changing voltage? 05: 24 How to change capacitance? 07:11 Introducing a resistor in the circuit to keep the charge constant 10:29 Summary Practice this concept - https://www.khanacademy.org/science/i... Master the concept of Capacitance through practice exercises and videos - https://www.khanacademy.org/science/i... Check out more videos and exercises on Electrostatic potential and Capacitance - https://www.khanacademy.org/science/i... To get you fully ready for your exam and help you fall in love with Physics, find the complete bank of exercises and videos for Class 12 Physics here - https://www.khanacademy.org/science/i... Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages. Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy. Subscribe to our YouTube channel -    / khanacademy   As a 501(c)(3) nonprofit organization, we would love your help! Donate here: https://www.khanacademy.org/donate?ut... Created by Vibhor Pandey