💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

A heart defibrillator being used on a patient has an RC time constant of 10.0 ms due to the resistance of the patient and the capacitance of the defibrillator. (a) If the defibrillator has an $8.00-\mu \mathrm{F}$ capacitance, what is the resistance of the path through the patient? (You may neglect the capacitanceof the patient and the resistance of the defibrillator.) (b) If the initial voltage is 12.0 kV, how long does it take to decline to $6.00 \times 10^{2} \mathrm{v} ?$

a) 1.25 $\mathrm{kn}$b) 36 $\mathrm{ms}$

Physics 102 Electricity and Magnetism

Chapter 21

Circuits, Bioelectricity, and DC Instruments

Direct-Current Circuits

Cornell University

University of Michigan - Ann Arbor

University of Washington

Hope College

Lectures

11:53

In physics, a charge is a …

10:30

The electric force is a ph…

01:51

A heart defibrillator bein…

02:59

05:10

(a) A defibrillator sends …

01:59

A defibrillator passes a b…

02:14

A heart defibrillator pass…

01:36

Defibrillator During ventr…

02:11

A medical defibrillator st…

06:41

BIO Pacemaker Pulses A pac…

01:38

A cardiac defibrillator is…

01:17

(I) A cardiac defibrillato…

02:37

You're designing an e…

02:40

(a) What is the energy sto…

00:34

A defibrillator consists o…

00:47

01:22

A defibrillator is used to…

02:02

A heart pacemaker fires 72…

03:01

In a heart pacemaker, a pu…

In open-heart surgery, a m…

01:58

An ECG monitor must have a…

02:04

A capacitor that is initia…

so in the first part or we have to do is to solve for the time constant is equal to our time. See, because we are given time constant and we are viewing capacitance from this one can find the resistance equal to time constant, divided by capacitors. So time constant is generally seconds, which is 10 times 10 power negative three divided by the capacitance is eight micro Farid eight times to empower negative six. If you saw this, he would find the answer is one too five zero over which is 1.25 kill over. In the second part of the question, it says that initial volt ages 12 pillow would that that is the not enough. Let me light your life because in textbook we used a formula in terms of a M F M. If it's 12,000 vote on dhe, final voltage is equal to 600 void. Before I completely saw this, I would like to say answer given on the numerator page is wrong. So let's use the four well known to us. B is equal to em. If exponential negative t divided battle on. We know everything except he on We're supposed to find the valley of tea. So this gives you t equal to negative love of natural lower, really routed by times toe. So let's substitute on the values. Natural log negative V is 600 divided by 20,000 times. The time given to us is time constant given to us just end power. Negative to off 10 times. 10 power. Negative free. Now, if you saw this, he and find the answer is zero point 0 to 9 95 which is in seconds. So this is equal to 29.9 five milliseconds. This is approximately 30 milliseconds because we want to keep accuracy off three digits on dhe. This is five. So this will be increased problem. So this is increased by one. And so is this. So this is ultimately seconds. Thank you.

View More Answers From This Book

Find Another Textbook

In physics, a charge is a physical property of matter that causes it to expe…

The electric force is a physical force exerted by electrically charged parti…

A heart defibrillator being used on a patient has an $R C$ time constant of …

(a) A defibrillator sends a 6.00-A current through the chest of a patient by…

A defibrillator passes a brief burst of current through the heart to restore…

A heart defibrillator passes 10.0 A through a patient's torso for 5.00 …

Defibrillator During ventricular fibrillation the heart muscles contract ran…

A medical defibrillator stores $950 \mathrm{J}$ in a $100-\mu \mathrm{F}$ ca…

BIO Pacemaker Pulses A pacemaker sends a pulse to a patient's heart eve…

A cardiac defibrillator is used to shock a heart that is beating erratically…

(I) A cardiac defibrillator is used to shock a heart that is beating erratic…

You're designing an external defibrillator that discharges a capacitor …

(a) What is the energy stored in the 10.0 - $\mu$ F capacitor of a heart def…

A defibrillator consists of a 15 - $\mu$ F capacitor that is charged to $9.0…

(a) What is the energy stored in the 10.0$\mu \mathrm{F}$ capacitor of a hea…

A defibrillator is used to restart a person's heart after it stops beat…

A heart pacemaker fires 72 times a minute, each time a 25.0-nF capacitor is …

In a heart pacemaker, a pulse is delivered to the heart 81 times per minute.…

In open-heart surgery, a much smaller amount of energy will defibrillate the…

An ECG monitor must have an $R C$ time constant less than $1.00 \times 10^{2…

A capacitor that is initially uncharged is connected in series with a resist…

01:39

A plumber at a nuclear power plant receives a whole-body dose of 30 msv in 1…

01:43

Unreasonable Results(a) Calculate the capacitance needed to get an $R C$…

15:48

An $R L C$ series circuit has a 200$\Omega$ resistor and a 25.0 $\mathrm{mH}…

01:02

The difference in energy between allowed oscillator states in HBr molecules …

03:34

A tree falls in a forest. How many years must pass before the $^{14} \mathrm…

00:38

Find the magnification of the heater element in Example 25.9 . Note that its…

03:35

The $\beta^{-}$ particles emitted in the decay of $^{3} \mathrm{H}$ (tritium…

03:21

What is the ratio of the velocity of a 5.00 -MeV $\beta$ ray to that of an $…

06:05

(a) What is the shortest-wavelength x-ray radiation that can be generated in…

00:31

To what value must you adjust $R_{3}$ to balance a Wheatstone bridge, if the…