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The ability of a capacitor to store potential energy is the basis of defibrillator devices, which are used in emergency by medical team to stop the fibrillation of heart attack victims. In a portable defibrillator device, a battery charges a capacitor to a high potential difference, storing a large amount of energy in less than a minute. The battery maintains only a modest potential difference; an electronic circuit repeatedly uses that potential difference for greatly increasing the potential difference of the capacitor. When a control switch is closed, the capacitor lends a portion of its stored energy from paddle to paddle through the victim. The figure shows an arrangement, to understand the working of a defibrillator.
Paragraph for Question Nos. 17 and 18
The ability of a capacitor to store potential energy is the basis of defibrillator devices, which are used in emergency by medical team to stop the fibrillation of heart attack victims. In a portable defibrillator device, a battery charges a capacitor to a high potential difference, storing a large amount of energy in less than a minute. The battery maintains only a modest potential difference; an electronic circuit repeatedly uses that potential difference for greatly increasing the potential difference of the capacitor. When a control switch is closed, the capacitor lends a portion of its stored energy from paddle to paddle through the victim. The figure shows an arrangement, to understand the working of a defibrillator.
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