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ChemistryPrinciples of Instrumental Analysis(a) Interpretation: The relative error in the voltage reading if the internal resistance of the voltmeter was 4000 χ should be calculated. Concept introduction: The percentage relative loading error of the voltmeter E r = V M -V x V X ×100% V M = Voltage of the meter V X = True voltage of the source V M = V X ( R M R M + R S ) When resistors are in series, a voltage divider. V = V 1 + V 2 + V 3 The current in a series circuit is everywhere the same. In other words, I = I 1 = I 2 = I 3 The total resistance Rs of a series circuit is equal to the sum of the resistances of the individual components. R s = R 1 + R 2 + R 3 Ohm’s law; Ohm’s law describes the relationship among voltage, resistance, and current in a resistive series circuit. V = IR V = Voltage I = Current R = resistantStart your trial now! First week only $4.99!*arrow_forward*

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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter 2, Problem 2.3QAP

Interpretation Introduction

**(a)**

**Interpretation:**

The relative error in the voltage reading if the internal resistance of the voltmeter was 4000 χ should be calculated.

**Concept introduction:**

The percentage relative loading error of the voltmeter E_{r} =

V_{M} = Voltage of the meter

V_{X} = True voltage of the source

When resistors are in series, a voltage divider. V = V_{1} + V_{2} + V_{3}

The current in a series circuit is everywhere the same. In other words, I = I_{1} = I_{2} = I_{3}

The total resistance Rs of a series circuit is equal to the sum of the resistances of the individual components. R_{s} = R_{1} + R_{2} + R_{3}

Ohm’s law;

Ohm’s law describes the relationship among voltage, resistance, and current in a resistive series circuit.

V = IR

V = Voltage I = Current R = resistant

Interpretation Introduction

**(b)**

**Interpretation:**

The relative error in the voltage reading if the internal resistance of the voltmeter was 80.0 kχ should be calculated.

**Concept introduction:**

The percentage relative loading error of the voltmeter E _{r} =

V_{M} = Voltage of the meter

V_{X} = True voltage of the source

When resistors are in series, a voltage divider. V = V_{1} + V_{2} + V_{3}

The current in a series circuit is everywhere the same. In other words, I = I_{1} = I_{2} = I_{3}

The total resistance Rs of a series circuit is equal to the sum of the resistances of the individual components. R_{s} = R_{1} + R_{2} + R_{3}

Ohm’s law;

Ohm’s law describes the relationship among voltage, resistance, and current in a resistive series circuit.

V = IR

V = Voltage I = Current R = resistant

Interpretation Introduction

**(c)**

**Interpretation:**

The relative error in the voltage reading if the internal resistance of the voltmeter was 1.00 Mχ should be calculated.

**Concept introduction:**

The percentage relative loading error of the voltmeter E _{r} =

V_{M} = Voltage of the meter

V_{X} = True voltage of the source

When resistors are in series, a voltage divider. V = V_{1} + V_{2} + V_{3}

The current in a series circuit is everywhere the same. In other words, I = I_{1} = I_{2} = I_{3}

The total resistance Rs of a series circuit is equal to the sum of the resistances of the individual components. R_{s} = R_{1} + R_{2} + R_{3}

Ohm’s law;

Ohm’s law describes the relationship among voltage, resistance, and current in a resistive series circuit.

V = IR

V = Voltage I = Current R = resistant