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(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 e−t/RC
(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 e−t/RC
(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 e−t/RC
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Chapter 2 Solutions
Principles of Instrumental Analysis
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