Concept explainers
a.
To find: An impedance of a parallel circuit.
An impedance of a parallel circuit is
Given:
In a parallel circuit, there is more than one pathway through which current can flow. To find the impedance $Z$ of a parallel circuit with two pathways, first calculate the impedances
Calculation:
First, we have to find
Now, consider the pathway
The impedance of the resistor is
Add the impedances.
Substitute for
Apply the FOIL method in the numerator and the definition of complex addition in the denominator.
Use
Multiply the numerator and the denominator by
Apply the FOIL method and simplify.
Simplify and write in standard form.
Therefore, the impedance of the parallel circuit is
b.
To find: An impedance of a parallel circuit.
An impedance of a parallel circuit is
Given:
In a parallel circuit, there is more than one pathway through which current can flow. To find the impedance $Z$ of a parallel circuit with two pathways, first calculate the impedances
Calculation:
Find
Substitute for
Write the numerator and the denominator in simplified form.
Multiply the numerator and the denominator by
Simplify and write in standard form.
The impedance of the parallel circuit is
c.
.To find: An impedance of a parallel circuit.
An impedance of a parallel circuit is
Given:
In a parallel circuit, there is more than one pathway through which current can flow. To find the impedance $Z$ of a parallel circuit with two pathways, first calculate the impedances
Calculation:
Find
Substitute for
Write the numerator and the denominator in simplified form.
Multiply the numerator and the denominator by
Simplify and write in standard form.
The impedance of the parallel circuit is
Chapter 1 Solutions
Mcdougal Littell Algebra 2: Student Edition (c) 2004 2004
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