Explanation Given info: A voltmeter with resistance 200 k Ω is used for measuring the voltage across the 10 k Ω resistor as shown in figure 25.27 . Consider 5 k Ω resistor as R 1 and 10 k Ω as R 2 . Write the expression of voltage dropped across R 2 V = ε R 2 R 1 + R 2 (1) Here, V is the voltage dropped at R 2 ε is the applied voltage Substitute 150 V for ε and 5 k Ω for R 1 and 10 k Ω for R 2 V = ( 150 V ) ( 10 k Ω ) 5k Ω + 10 k Ω = 100 V 100 V is the true voltage dropped at R 2 When voltmeter connected to the circuit parallel to the resistance R 2 , it offers a parallel combination resistance. Write the expression for the total resistance due to parallel combinations 1 R total = 1 R 2 + 1 R V R total = R V R 2 R 2 + R V (2) Here, R V is the resistance of voltmeter R total is the total parallel resistance Substitute

Essential University Physics (3rd Edition)

3rd Edition

ISBN: 9780134202709

Author: Richard Wolfson

Publisher: PEARSON

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Chapter 25, Problem 28E

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The percentage error in the measurement of voltage due to finite meter resistance.

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Chapter 25, Problem 27E

Chapter 25, Problem 29E

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Chapter 25 Solutions

Essential University Physics (3rd Edition)

Ch. 25.1 - The figure shows three circuits. Which are...Ch. 25.2 - Rank front highest to lowest the voltages across...Ch. 25.2 - The figure shows all four possible combinations of...Ch. 25.2 - The figure shows a circuit with three identical...Ch. 25.3 - Which circuit(s) cannot be analyzed using series...Ch. 25.4 - All resistors in the figure have the same value...Ch. 25.5 - A capacitor is charged to 12 V and then connected...Ch. 25 - Are household electrical outlets connected in...Ch. 25 - All the resistors in Fig. 25.24 have the same...Ch. 25 - Can the voltage across a batterys terminals differ...

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The percentage error in the measurement of voltage due to finite meter resistance.

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