Notes Ask Your T 4.16 points SerCP10 1 Find the equivalent capacitance of the gr

Question

Notes Ask Your T 4.16 points SerCP10 1 Find the equivalent capacitance of the gro p of capacitors shown in the figure below. (Let C1-5.40 C2-4.10 C-2.70pF, C-1 60pF C-320A Cs 48.0 V Need Help? eat My Notes Aak Your b hock to the chest can over a time of a few milliseconds. The device contains a capacitor of a few microfarads charged to several thousand voits. Electrodes called paddles, 12. 424 points SerCP10 16P063 . beating. An electrics The immediate cause of many deaths is ventricular fibrillation, an uncoordinated quivering of the heart, as opposed to proper cause momentary paralysis of the heart muscle, after which the heart wil sometimes start organized beating again. A defibrwiator is a device that applies a strong electric event injury to the operator, who cals. 8 cm across and coated with conducting paste, are held against the chest on both sides of the heart. T Clear" and pushes a buttion on one paddle to discharge the capacitor through the patient's chest capacitor. To what potential difference must it be charged? . Assume an energy of 335 W-s is to be delivered from a 27.0-F Need Help? Rax

Explanation / Answer

C1 and C2 are in parallel = 5.4+4.1 = 9.5 uF

C4 , C5 and C6 are in parallel = 1.6 + 3.2+ 7.2 = 12 uF

9.5 uF and C3 are in series = 9.5*2.7/ (9.5+2.7) = 2.1 uF

12 uF and C7 are in series = 12*5.8 / (12+5.8) = 3.9 uF

2.1 uF and 3.9 uF are in parallel

C(net) = 2.1 +3.9 = 6 uF

so equivalent capacitance = 6 uF

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