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Physics / Fundamentals of Physics 10 / Chapter 27 / Problem 105

Fundamentals of Physics | 10th Edition | ISBN: 9781118230725 | Authors: David Halliday; Robert Resnick; Jearl Walker

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In Fig. 27-84, R1 ! R2 ! 2.0 0, R3 ! 4.0 0, R4 ! 3.0 0, R5

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QUESTION:

In Fig. 27-84, R1 ! R2 ! 2.0 0, R3 ! 4.0 0, R4 ! 3.0 0, R5 ! 1.0 0, and R6 ! R7 ! R8 ! 8.0 0, and the ideal batteries have emfs #1 ! 16 V and #2 ! 8.0 V. What are the (a) size and (b) direction (up or down) of current i1 and the (c) size and (d) direction of current i2? What is the energy transfer rate in (e) battery 1 and (f) battery 2? Is energy being supplied or absorbed in (g) battery 1 and (h) battery 2? .i2i1 R1R2 R3 R4R6 R5R8 R71+ + Figure 27-84 105

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QUESTION:

In Fig. 27-84, R1 ! R2 ! 2.0 0, R3 ! 4.0 0, R4 ! 3.0 0, R5 ! 1.0 0, and R6 ! R7 ! R8 ! 8.0 0, and the ideal batteries have emfs #1 ! 16 V and #2 ! 8.0 V. What are the (a) size and (b) direction (up or down) of current i1 and the (c) size and (d) direction of current i2? What is the energy transfer rate in (e) battery 1 and (f) battery 2? Is energy being supplied or absorbed in (g) battery 1 and (h) battery 2? .i2i1 R1R2 R3 R4R6 R5R8 R71+ + Figure 27-84 105

ANSWER:

Problem 105

In Fig. 27-84, , , and and the ideal batteries have emfs and . What are the (a) size and (b) direction (up or down) of current and the (c) size and (d) direction of current ? What is the energy transfer rate in (e) battery 1 and (f) battery 2? Is energy being supplied or absorbed in (g) battery 1 and (h) battery 2

Step by Step Solution

Step 1 of 7

Finding equivalent resistance,

Resistors and are in parallel connection, thus the equivalent resistance will be,

Resistors and are in series, thus the equivalent resistance will be,

Thus, the equivalent resistance of , , and will be,

Since, is in parallel with , the equivalent resistance will be,

Resistor is in series with , the equivalent resistance will be,

Resistors and are in series, thus the equivalent resistance will be,

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