(a) Interpretation: The time it would take to discharge a 0.025 µF capacitor to 1% of its full charge through a resistance of 10 Mχ should be calculated. Concept introduction: The product of RC is referred to as time constant for the circuitand is a measure of the time required for a capacitor to chargeor discharge. Capacitor is discharged to 1% of its full charge. Therefore, the value of charge at time ‘t’ can be related to the initial charge by following equation. θ t = 1 100 × θ 0 θ t = charge after discharge of the capacitor θ 0 = initial charge of the capacitor Time taken for the discharge of the capacitor can be calculated using following relationship; θ t = θ 0 e − t / R C

BuyFind

Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213
BuyFind

Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

Solutions

Chapter 2, Problem 2.14QAP
Interpretation Introduction

(a)

Interpretation:

The time it would take to discharge a 0.025 µF capacitor to 1% of its full charge through a resistance of 10 Mχ should be calculated.

Concept introduction:

The product of RC is referred to as time constant for the circuitand is a measure of the time required for a capacitor to chargeor discharge.

Capacitor is discharged to 1% of its full charge. Therefore, the value of charge at time ‘t’ can be related to the initial charge by following equation.

θt=1100×θ0

θt = charge after discharge of the capacitor

θ0 = initial charge of the capacitor

Time taken for the discharge of the capacitor can be calculated using following relationship;

θt=θ0 et/RC

Interpretation Introduction

(b)

Interpretation:

The time it would take to discharge a 0.025 µF capacitor to 1% of its full charge through a resistance of 1 Mχ should be calculated.

Concept introduction:

The product of RC is referred to as time constant for the circuit and is a measure of the time required for a capacitor to charge or discharge.

Capacitor is discharged to 1% of its full charge. Therefore, the value of charge at time ‘t’ can be related to the initial charge by following equation.

θt=1100×θ0

θt = charge after discharge of the capacitor

θ0 = initial charge of the capacitor

Time taken for the discharge of the capacitor can be calculated using following relationship;

θt=θ0 et/RC

Interpretation Introduction

(c)

Interpretation:

The time it would take to discharge a 0.025 µF capacitor to 1% of its full charge through a resistance of 1 kχ should be calculated.

Concept introduction:

The product of RC is referred to as time constant for the circuit and is a measure of the time required for a capacitor to charge or discharge.

Capacitor is discharged to 1% of its full charge. Therefore, the value of charge at time ‘t’ can be related to the initial charge by following equation.

θt=1100×θ0

θt = charge after discharge of the capacitor

θ0 = initial charge of the capacitor

Time taken for the discharge of the capacitor can be calculated using following relationship;

θt=θ0 et/RC

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