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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Chapter 28, Problem 34SP
For the entire circuit shown in Fig. 28-17, find (a) the equivalent resistance; (b) the currents through the 5.0-
![Chapter 28, Problem 34SP, 28.34 [II] For the entire circuit shown in Fig. 28-17, find (a) the equivalent resistance; (b) the](https://content.bartleby.com/tbms-images/9781259587399/Chapter-28/images/87399-28-34sp-question-digital_image54.png)
Fig. 28-17
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Please show all work using this. (Actual values, equations, and drawings)
The current through the 20-N resistor in Fig. 19–81 does
not change whether the two switches S1 and S2 are both
open or both closed.
Use this clue to
20 Ω
determine the value
of the unknown
R
resistance R.
10
Ω
S2
50 Ω
FIGURE 19-81
Problem 83.
6.0 V
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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- The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance increases. Yet this power is also given by P = I2R, which means power increases if resistance increases. Explain why there is no contradiction here.arrow_forwardUsing as many 12 Ω resistors as you need, produce a resistor circuit whose equivalent resistance is:(a) 18 Ω(b) 30 Ωarrow_forward35 (a) For the circuit shown in Fig. 20-27, let & = 10 V, R = 5.0 N, and C = 0.1 F. What is the current at b just after the switch is closed? (b) How much charge will have passed b by the time %3D %3D %3D the current goes to zero? (c) Find the current at the instant the capacitor has a charge of 0.20 C. 9. Soitch Sarrow_forward
- -37 In Fig. 27-48, the resistances are R, = 2.00 N, R, = 5.00 N, and the battery is ideal. What value of R3 Ra R3 maximizes the dissipation rate in resistance 3? wwarrow_forward5. Where in the circuit of Fig. 18–33 is the current the largest, (a), (b), (c), or (d)? Or (e) it is the same at all points? (c) |(b) FIGURE 18-33 + 1.5 V (a) MisConceptual Question 5. (d)arrow_forwardIn a complex circuit like the one on this circuit board, is it possible to connect several resistors with different resistances so that all of them have the same potential difference? (i) Yes, and the current will be the same through all of the resistors; (ii) yes, but the current may be different through different resistors; (iii) no; (iv) the answer depends on the value of the potential difference.arrow_forward
- Given the resistances of 1 Ω, 2 Ω, 3 Ω, how will be combine them to get an equivalent resistance of (i) (11/3) Ω (ii) (11/5) Ω, (iii) 6Ω, (iv) (6/11) Ω?arrow_forwardA battery has an emf ε = 43.0 V and an internal resistance r = 8.00, as shown in the figure. When the terminal voltage Vis equal to 34.0 V, the current through the battery is closest to a) 0.1 A b) 4.2 A c) 1.1 A d) 6.2 A e) 5.4 A #₁ w r -2-arrow_forward7. When the switch shown in Fig. 19–45 is closed, what will happen to the voltage across resistor R,? It will (a) increase. (b) decrease. (c) stay the same. R1 S V R3 R4 FIGURE 19-45 R2 MisConceptual Questions 7 and 8.arrow_forward
- 8. Find the equivalent resistance between points a and b for the combination shown in Fig. 28-6(a). 3.0 2 2.0 2. 9.0 2 6.0 요 7.0 요 12.0 Q -W- 5.0 2 (a) Fig. 28-6arrow_forwardTe-Learning Portal Courses - Reports e-Services ▼ Academic Departments - ETC - CIMS Salim During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. ww R on Battery The measured value of the current is I = 3.1 ± 0.2 A and that of the voltage is V = 14 0.5 V. The resistance of the circuit (in N) can be calculated using the formula, R = V/I, Calculate the, a) Resistance (in 2) = b) Fractional uncertainty in the resistance = c) Absolute uncertainty (in 2) in the resistance=arrow_forwardConsider n series-connected identical resistors of resistance R. Which of the following is true about their equivalent resistance? (A) The answer cannot be found on the other choices. B) Req=n/R; C) Req=R"; D) Req=Rn; E) Req = R/n;arrow_forward
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