Concept explainers
(a)
Find the power dissipated by
(a)
Answer to Problem 41E
The power dissipated by
Explanation of Solution
Given Data:
The load resistance is
Formula used:
The expression for the power dissipated by load resistor is as follows.
Here,
Calculation:
The redrawn circuit diagram is given in Figure 1,
Refer to the redrawn Figure 1,
Apply Kirchhoff’s current law at node 1.
Here,
Substitute
Rearrange for
Rearrange for
Apply Kirchhoff’s voltage law between node 1 and 2.
Substitute
Rearrange for
So, the Thevenin voltage is
The redrawn circuit diagram is given in Figure 2,
Refer to the redrawn Figure 2.
Apply Kirchhoff’s current law at node 1.
Here,
Substitute
Rearrange for
The expression for the Thevenin equivalent resistance is as follows,
Here,
Substitute
The redrawn circuit diagram is given in Figure 3,
Refer to the redrawn Figure 3,
The expression for the current flowing in the circuit is as follows.
Here,
Substitute
Substitute
Conclusion:
Thus, the power dissipated by
(b)
The power dissipated by
(b)
Answer to Problem 41E
The power dissipated by
Explanation of Solution
Given Data:
The load resistance is
Calculation:
Refer to the redrawn Figure 3,
Substitute
Substitute
Conclusion:
Thus, the power dissipated by
(c)
The power dissipated by
(c)
Answer to Problem 41E
The power dissipated by
Explanation of Solution
Given Data:
The load resistance is
Calculation:
Refer to the redrawn Figure 3,
Substitute
Substitute
Conclusion:
Thus, the power dissipated by
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Chapter 5 Solutions
Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
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