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Physics / Fundamentals of Physics 10 / Chapter 27 / Problem 91

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

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In Fig. 27-77, the ideal batteries have emfs #1 ! 12.0 V

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QUESTION:

In Fig. 27-77, the ideal batteries have emfs #1 ! 12.0 V and #2 ! 4.00 V, and the resistances are each 4.00 0. What are the (a) size and (b) direction (up or down) of i1 and the (c) size and (d) direction of i2? (e) Does battery 1 supply or absorb energy, and (f) what is its energy transfer rate? (g) Does battery 2 supply or absorb energy, and (h) what is its energy transfer rate?2 i1 1+ + 2Figure 27-77 91

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QUESTION:

In Fig. 27-77, the ideal batteries have emfs #1 ! 12.0 V and #2 ! 4.00 V, and the resistances are each 4.00 0. What are the (a) size and (b) direction (up or down) of i1 and the (c) size and (d) direction of i2? (e) Does battery 1 supply or absorb energy, and (f) what is its energy transfer rate? (g) Does battery 2 supply or absorb energy, and (h) what is its energy transfer rate?2 i1 1+ + 2Figure 27-77 91

ANSWER:

Problem 91

In Fig. 27-77, the ideal batteries have emfs and , and the resistances are each . What are the (a) size and (b) direction (up or down) of and the (c) size and (d) direction of ? (e) Does battery 1 supply or absorb energy, and (f) what is its energy transfer rate? (g) Does battery 2 supply or absorb energy, and (h) what is its energy transfer rate?

Step by Step Solution

Step 1 of 5

The emf of battery 1 is .

The emf of battery 2 is .

The resistance of each resistors is .

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