A defibrillator used to restore normal heart rhythm consists essentially of a ca

Question

A defibrillator used to restore normal heart rhythm consists essentially of a capacitor, a high voltage supply used to charge the capacitor, and a pair of paddles (electrodes) placed on the patient's chest. The charged capacitor is discharged in a short time through the patient's body.(This is an oversimplified version of the real instrument. In a real instrument not all of the energy stored in the capacitor is delivered to the patient's body.)Suppose the resistance of the body is 3000. A 10F capacitor is connected to a 10000 V supply.

Explanation / Answer

given that R = 3000O v = 10000v C = 10µF energy stored in the capacitor = 1/2 *cv2 plug in values = -------J time constant = t = RC = ------s

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