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Physics / Fundamentals of Physics 10 / Chapter 27 / Problem 2

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

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In Fig. 27-26, the ideal batteries have emfs #1 ! 150 V

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QUESTION:

In Fig. 27-26, the ideal batteries have emfs #1 ! 150 V and #2 ! 50 V and the resistances are R1 ! 3.0 0 and R2 ! 2.0 0. If the potential at P is 100 V, what is it at Q? PR1R2 1 2 Figure 27-26 2.

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QUESTION:

In Fig. 27-26, the ideal batteries have emfs #1 ! 150 V and #2 ! 50 V and the resistances are R1 ! 3.0 0 and R2 ! 2.0 0. If the potential at P is 100 V, what is it at Q? PR1R2 1 2 Figure 27-26 2.

ANSWER:

Problem 2

In Fig. 27-26, the ideal batteries have emf and and the resistances are and . If the potential at P is , what is it at Q?

Step by Step Solution

Step 1 of 2

The emf in the circuit is .

The emf in the circuit is .

The resistance is .

The resistance is .

The potential at P is .

In order to determine the potential at P, we have to:

Apply the Kirchhoff voltage law.

For, , and .

Therefore,

…… (1)

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