University Physics with Modern Physics (14th Edition)

14th Edition

ISBN: 9780321973610

Author: Hugh D. Young, Roger A. Freedman

Publisher: PEARSON

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Textbook Question

Chapter 26, Problem 26.37E

A circuit consists of a series combination of 6.00-kΩ and 5.00-kΩ resistors connected across a 50.0-V battery having negligible internal resistance. You want to measure the true potential difference (that is, the potential difference without the meter present) across the 5.00- kΩ resistor using a voltmeter having an internal resistance of 10.0 kΩ. (a) What potential difference does the voltmeter measure across the 5.00-kΩ resistor? (b) What is the true potential difference across this resistor when the meter is not present? (c) By what percentage is the voltmeter reading in error from the true potential difference?

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Chapter 26, Problem 26.36E

Chapter 26, Problem 26.38E

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A circuit consists of a series combination of 6.50 kΩ and 5.00 kΩ resistors connected across a 50.0 V battery having negligible internal resistance. You want to measure the true potential difference (that is, the potential difference without the meter present) across the 5.00 resistor using a voltmeter having an internal resistance of 10.0 kΩ. What potential difference does the voltmeter measure across the 5.00 resistor? What is the true potential difference across this resistor when the meter is not present? By what percentage is the voltmeter reading in error from the true potential difference?

A capacitor is charged to a potential of 12.0 V and then connected to a voltmeter having an internal resistance of 3.40 MO. After a time of 4.00 s the voltmeter reads 3.0 V. What are (a) the capacitance and (b) the time constant of the circuit?

Problem 10: If you try and measure the voltage of a battery with a voltmeter connected in series, you won't get a completely accurate measurement because of the internal resistance of the battery. To see how large this effect is, consider trying to measure the terminal voltage of a 1.585 V alkaline cell having an internal resistance of 52 2 by placing a 0.95 k2 voltmeter across its terminals. Randomized Variables ww R = 0.95 k2 r = 52 Q r emf Part (a) What current flows in A? Numeric : A numeric value is expected and not an expression. I = Part (b) Find the terminal voltage in V. Numeric : A numeric value is expected and not an expression. V = Part (c) To see how close the measured terminal voltage is to the emf, calculate their ratio. Numeric : A numeric value is expected and not an expression. V/e =

Chapter 26 Solutions

University Physics with Modern Physics (14th Edition)

Ch. 26.1 - Suppose all three of the resistors shown in Fig....Ch. 26.2 - Subtract Eq. (1) from Eq. (2) in Example 26.6. To...Ch. 26.3 - You want to measure the current through and the...Ch. 26.4 - The energy stored in a capacitor is equal to...Ch. 26.5 - To prevent the circuit breaker in Example 26.14...Ch. 26 - In which 120-V light bulb does the filament have...Ch. 26 - Two 120-V light bulbs, one 25-W and one 200-W,...Ch. 26 - You connect a number of identical light bulbs to a...Ch. 26 - In the circuit shown in Fig. Q26.4, three...Ch. 26 - If two resistors R1 and R2 (R2 R1) are connected...

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