Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 28, Problem 27SP
A 36-Ω galvanometer is shunted by a resistor of 4.0 Ω. What part of the total current will pass through the instrument?
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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 25 V for a very short time, usually about 3 milliseconds. How much energy is transferred from the defibrillator to the body?
Choices:
0.30 J
0.90 J
900 J
300 J
A capacitor charging circuit consists of a battery, an uncharged 20 μF capacitor, and a 4.0 kΩ resistor. At t = 0 s, the switch is closed; 0.15 s later, the current is 0.46 mA. What is the battery’s emf?
17.
A person in bare feet is standing under a tree during a thunderstorm, seeking shelter from the rain. A lightning strike hits the tree. A burst of current lasting 40.0 μs passes through the ground; during this time the potential difference between his feet is 29.7 kV.
If the resistance between one foot and the other is 520 Ω, how much energy is dissipated in his body by the lightning?
_____J
Chapter 28 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 28 - Prob. 18SPCh. 28 - 19. Compute the equivalent resistance of (a) 3.0...Ch. 28 - 20. What resistance must be placed in parallel...Ch. 28 - 21. How many 160-Ω resistors (in parallel) are...Ch. 28 - 28.22 [II] Three resistors, of 8.0, 12, and 24,...Ch. 28 - Prob. 24SPCh. 28 - 25. Three resistors, of 40 Ω, 60 Ω, and 120 Ω, are...Ch. 28 - Prob. 26SPCh. 28 - 27. A 36-Ω galvanometer is shunted by a resistor...Ch. 28 - 28.28 [II] A relay having a resistance of 6.0 ...
Ch. 28 - 28.29 [II] Show that if two resistors are...Ch. 28 - 28.30 [II] For the circuit shown in Fig. 28-13,...Ch. 28 - 28.31 [II] For the circuit shown in Fig. 28-14,...Ch. 28 - 28.32 [II] It is known that the potential...Ch. 28 - 28.33 [II] In the circuit shown in Fig. 28-16,...Ch. 28 - 28.34 [II] For the entire circuit shown in Fig....Ch. 28 - 28.35 [II] In the circuit shown in Fig. 28-18, the...Ch. 28 - 36. The Wheatstone bridge shown in Fig. 28-19 is...Ch. 28 - 37. The slidewire Wheatstone bridge shown in Fig....Ch. 28 - 28.38 [II] Referring to the circuit in Fig. 28-21,...Ch. 28 - 28.39 [II] Referring to the circuit in Fig. 28-22,...
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- A capacitor charging circuit consists of a battery, an uncharged 20 μF capacitor, and a 5.6 kΩkΩ resistor. At t = 0 ss the switch is closed; 0.15 s later, the current is 0.46 mA . What is the battery's emf?arrow_forwardTwo resistors R1 = 5.0 Ω and R2 = 20.0 Ω are connected parallel and the combined resistors is connected to a battery of Emf = VT. If R1 carries current of 2.0 A, what is the current through R2?arrow_forwardA battery has emf E and internal resistance r = 2.00 Ω. A 12.0 Ω resistor is connected to the battery, and the resistor consumes electrical power at a rate of 96.0 J/ What is the emf of the battery?arrow_forward
- On a sunny day, a rooftop solar panel delivers 60 W of power to the house at an emf of 17 V. How much current flows through the panel?arrow_forwardA capacitor with a capacitance of 3.5 μF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 19.5 kΩ, and a battery that has a potential difference of 155 V. Immediately after the switch is closed, what is the current, in amperes, through the resistor?arrow_forwardA 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 25 V for a very short time, usually about 3 millisecond. How much energy is transferred from the defibrillator to the body?arrow_forward
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