If two resistors R 1 and R 2 ( R 2 > R 1 ) are connected in series as shown in Fig. Q26.5 , which of the following must be true? In each case justify your answer, (a) I 1 = I 2 = I 3 (b) The current is greater in R 1 than in R 2 . (c) The electrical power consumption is the same for both resistors, (d) The electrical power consumption is greater in than in R 1 . (e) The potential drop is the same across both resistors. (f) The potential at point a is the same as at point c . (g) The potential at point b is lower than at point c . (h) The potential at point c is lower than at point b . Figure Q26.5
If two resistors R 1 and R 2 ( R 2 > R 1 ) are connected in series as shown in Fig. Q26.5 , which of the following must be true? In each case justify your answer, (a) I 1 = I 2 = I 3 (b) The current is greater in R 1 than in R 2 . (c) The electrical power consumption is the same for both resistors, (d) The electrical power consumption is greater in than in R 1 . (e) The potential drop is the same across both resistors. (f) The potential at point a is the same as at point c . (g) The potential at point b is lower than at point c . (h) The potential at point c is lower than at point b . Figure Q26.5
If two resistors R1 and R2 (R2 > R1) are connected in series as shown in Fig. Q26.5, which of the following must be true? In each case justify your answer, (a) I1 = I2 = I3 (b) The current is greater in R1 than in R2. (c) The electrical power consumption is the same for both resistors, (d) The electrical power consumption is greater in than in R1. (e) The potential drop is the same across both resistors. (f) The potential at point a is the same as at point c. (g) The potential at point b is lower than at point c. (h) The potential at point c is lower than at point b.
Three 100 resistors are connected as shown in the figure. The maximum power that can safely be delivered to any one resistor is 24.0 W.
100 Ω
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a
and
b
?
(a) What is the maximum potential difference that can be applied to the terminals
V
a
100 Ω
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100 Ω
W
b
(b) For the voltage determined in part (a), what is the power delivered to each resistor?
resistor on the left
resistor at the top of the loop
resistor at the bottom of the loop
(c) What is the total power delivered to the combination of resistors?
W
W
W
Given two batteries: one with voltage Vand internal resistance r1; another with also voltage Vand internal resistance r2. Which of the
following is true if we connect them in parallel the positive terminal of one connected to the negative of the other?
O The answer cannot be found on the other choices.
The total voltage will be V, while the total internal resistance is (r1-1 + r21)1.
No voltage will remain, while the total internal resistance is (rıi
-1
+
r2
O The total voltage will be 2V, while the total internal resistance is (r11 + r2)1.
The electronics supply has tow different resistors: R1 and R2. In ist inventory and you must the values of their resistance. Stock is low, and all you have are R1 and R2 in parallel and series. Can´t separate the tow resistors combination. You separately connect each resistor network yo a battery emf 48V and negligible internal resistance and measure the power P supplied by the battery in both cases. For the series combination, P = 48W. for the parallel combination, P= 256W. You are told that R1>R2.
a) Calculate R1 and R2.
b) For the series combination, wich resistor consumes more power?
c) For the parallel, wich resistor consumes more power?
Chapter 26 Solutions
University Physics with Modern Physics (14th Edition)
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How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=eFlJy0cPbsY;License: Standard YouTube License, CC-BY