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Consider the circuit shown. (Intro 1 figure) All wires are considered ideal; that is, they have zero resistance. We will assume for now that all other elements of the circuit are ideal, too: The value of resistance is a constant, the internal resistances of the battery and the ammeter are zero, and the internal resistance of the voltmeter is infinitely large.

Part A

What is the reading V of the voltmeter?

Express your answer in terms of the EMF.

Part B

The voltmeter, as can be seen in the figure, is connected to points 1 and 3. What are the respective voltage differences between points 1 and 2 and between points 2 and 3?

Part C

What is the reading I of the ammeter?

Express your answer in terms of EMF and R

Now assume that the battery has a nonzero internal resistance (but the voltmeter and the ammeter remain ideal). (Intro 2 figure)

Part D

What is the reading of the ammeter now?

Express your answer in terms of EMF, r, and R.

Part E

What is the reading of the voltmeter now?

Express your answer in terms of EMF , r, and R.

 


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Mohd Imran
Mohd ImranLv7
27 Jan 2021
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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