
(a)
Find the values of average power
(a)

Answer to Problem 1P
The values of average power
Explanation of Solution
Given data:
Refer to given figure in the textbook.
The voltage and current expressions are,
From the given expressions, the required parameters are written as follows:
Formula used:
Write the expression to calculate the average power.
Here,
Write the expression to calculate the reactive power.
Calculation:
Rewrite the given current expression of current as follows:
Therefore, the value of
Substitute
As the average power is obtained with positive sign, the average power is absorbed from the terminals of the box in the given circuit.
Substitute
As the reactive power is obtained with positive sign, the magnetizing VARs are absorbed from the terminals of the box in the given circuit.
Conclusion:
Thus, the values of average power
(b)
Find the values of average power
(b)

Answer to Problem 1P
The values of average power
Explanation of Solution
Given data:
The voltage and current expressions are,
From the given expressions, the required parameters are written as follows:
Calculation:
Substitute
As the average power is obtained with positive sign, the average power is absorbed from the terminals of the box in the given circuit.
Substitute
As the reactive power is obtained with positive sign, the magnetizing VARs are absorbed from the terminals of the box in the given circuit.
Conclusion:
Thus, the values of average power
(c)
Find the values of average power
(c)

Answer to Problem 1P
The values of average power
Explanation of Solution
Given data:
The voltage and current expressions are,
From the given expressions, the required parameters are written as follows:
Calculation:
Rewrite the given voltage expression of current as follows:
Therefore, the value of
Substitute
As the average power is obtained with negative sign, the average power is delivered to the terminals of the box in the given circuit.
Substitute
As the reactive power is obtained with negative sign, the magnetizing VARs are delivered to the terminals of the box in the given circuit.
Conclusion:
Thus, the values of average power
(d)
Find the values of average power
(d)

Answer to Problem 1P
The values of average power
Explanation of Solution
Given data:
The voltage and current expressions are,
From the given expressions, the required parameters are written as follows:
Calculation:
Substitute
As the average power is obtained with positive sign, the average power is absorbed from the terminals of the box in the given circuit.
Substitute
As the reactive power is obtained with negative sign, the magnetizing VARs are delivered to the terminals of the box in the given circuit.
Conclusion:
Thus, the values of average power
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Chapter 10 Solutions
Electric Circuits, Global Edition
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