A heart defibrillator is used to enable the heart to start beating if it has stopped.

Problem 19.32: Treatment of heart failure

A heart defibrillator is used to enable the heart to start beating if it has stopped. This is done by passing a large current of 12 A through the body at 30 V for a very short time, usually about 3.3 ms.

Part A

What power does the defibrillator deliver to the body.

Part B

How much energy is transferred?

Solutions

Expert Solution

genius_generous answered 2 years ago

Next > < Previous

Related Solutions

Defibrillators are used to revive a person when their heart has stopped beating. How do they...

Defibrillators are used to revive a person when their heart has stopped beating. How do they work? What care must the person administering the treatment take? Give other examples of medical devices based on the interaction between the human body and electrical currents.

A defibrillator delivers a jolt of electrical energy to restart a heart that is either stopped...

A defibrillator delivers a jolt of electrical energy to restart a heart that is either stopped or undergoing ventricular defibrillation -- a rapid irregular beating. This energy is supplied by a charged capacitor and applied via paddles placed on a patient's body(one on each side of the heart). Consider a 20.7 μF capacitor charged to 2210 V in a defibrillator and used on a patient. After 9.85×10-2 seconds the voltage across the defibrillator's paddles drops to 49.6 V. Find the...

A defibrillator is a device used to shock the heart back to normal beat patterns. To...

A defibrillator is a device used to shock the heart back to normal beat patterns. To do this, it discharges a 15 μF capacitor through paddles placed on the skin, causing charge to flow through the heart. Assume that the capacitor is originally charged with 5.0 kV . Part A What is the charge initially stored on the capacitor? 3×10−9 C 7.5×104 C 7.5×10−2 C 7.5×10−5 C Part B What is the energy stored on the capacitor? What is the...

Suppose you have the 8.25 μF capacitor of a heart defibrillator at a potential difference of...

Suppose you have the 8.25 μF capacitor of a heart defibrillator at a potential difference of 13.5 × 104 V. C = 8.25 μF V = 13.5 × 104 V a) What is the energy stored in it in J? b) Find the amount of stored charge in mC.

Better Mousetraps has come out with an improved product, and the world is beating a path...

Better Mousetraps has come out with an improved product, and the world is beating a path to its door. As a result, the firm projects growth of 20% per year for 4 years. By then, other firms will have copycat technology, competition will drive down profit margins, and the sustainable growth rate will fall to 5%. The most recent annual dividend was DIV0 = $1 per share. Compute the value of Better Mousetraps for assumed sustainable growth rates of 6%...

Better Mousetraps has come out with an improved product, and the world is beating a path...

Better Mousetraps has come out with an improved product, and the world is beating a path to its door. As a result, the firm projects growth of 18% per year for 4 years. By then, other firms will have copy technology, competition will drive down profit margins, and the sustainable growth rate will fall to 3%. The most recent annual dividend was DIV0=$1.2 per share a)What are the expected values of (i) DIV1, (i) DIV2, (i) DIV3, (i) DIV4? b)What...

Better mousetraps has come out with an improved product and the world is beating a path...

Better mousetraps has come out with an improved product and the world is beating a path to its door. As a result, the company projects a 20% growth for 4 years. By then the other firms will copy its technology and drive down profit margins and the sustainable growth rate will fall to 5%. The most recent annual dividend was $1 per share. What are the expected dividends for the next 5 years? What is the expected stock price 4...

6. A friend of yours thinks that he has devised a purely mathematical way of beating...

6. A friend of yours thinks that he has devised a purely mathematical way of beating the standard European roulette wheel, which has 37 pockets. His plan is to come to the roulette table with 100 units with which to bet. On each spin, he places a one-unit, single-number bet. (Recall that winning such a bet returns 36 units to the winner.) He will make exactly 100 bets, no matter how much he wins or loses. He claims that this...

how does the heart, arteries and veins start and where they end up?

Trace pathway for the digestive system for fat. Start at mouth end at heart.

Subjects