A heart defibrillator being used on a patient has an RC time constant of 11 ms due to the resistance of the patient's body and the capacitance of the defibrillator. If the defibrillator has an 8.5 μF capacitance, what is the resistance of the path through the patient in kΩ? (You may neglect the capacitance of the patient's body and the resistance of the defibrillator.) If the initial voltage is 12.5 kV, how long does it take to decline to 6.00 × 102 V in ms?

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