Voltage, Electric Energy, and Capacitors: Crash Course Physics #27
So, how do those defibrillators you see on TV actually work? Surprise! Physics can explain! Okay buckle up, everyone! Today, Shini has the task of breaking ...
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You've probably seen it on TV a bunch of times. A person collapses in a hospital, and a doctor rushes over with a couple of paddles, puts them on the patient’s chest and then shouts "Clear!" After a jolt, the patient is saved. That life-saving technology is real. And it works because of two main electrical principles: electric potential energy and capacitance. Those paddles are parts of a defibrillator, which is basically just a really big capacitor. It uses electric charge to store energy, which is then discharged into the patient’s body. The current stops the irregular contractions of the cardiac muscle, and gives the heart a chance to start beating normally. Get ready, because this lesson has the potential to save lives! [Theme Music] To understand how a capacitor can ...
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You've probably seen it on TV a bunch of times. A person collapses in a hospital, and a doctor rushes over with a couple of paddles, puts them on the patient’s chest and then shouts "Clear!" After a jolt, the patient is saved. That life-saving technology is real. And it works because of two main electrical principles: electric potential energy and capacitance. Those paddles are parts of a defibrillator, which is basically just a really big capacitor. It uses electric charge to store energy, which is then discharged into the patient’s body. The current stops the irregular contractions of the cardiac muscle, and gives the heart a chance to start beating normally. Get ready, because this lesson has the potential to save lives! [Theme Music] To understand how a capacitor can ...
