電工學(Circuit Analysis)
Exercise 1 Fundamentals
Problem 1. (Hambley 1.17)
A typical “deep-cycle” battery (used for electric trolling motors for fishing boats) is capable
of delivering 12 V and 5 A for a period of 10 hours. How much charge flows through the
battery in this interval? How much energy is delivered by the battery?
Problem 2. (Hambley 1.36)
Use KCL to find the values of ia, ic, and id for the circuit of Figure 1. Which elements are
connected in series in this circuit?
Figure 1
Problem 3. (Hambley 1.37)
Find the values of the other currents in Figure 2. if ia = 2 A, ib = 3 A, id = -5 A, and ih = 4 A.
Figure 2
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電工學(Circuit Analysis)
Problem 4. (Hambley 1.45)
Solve for the other voltages shown in Figure 3 given that va = 15 V, vb = -7 V, vf = 10 V, and
vh = 4 V.
Figure 3
Problem 5. (Hambley 1.63)
Consider the circuit shown in Figure 4. Find the current iR flowing through the resistor.
Find the power for each element in the circuit. Which elements are absorbing power?
Figure 4
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電工學(Circuit Analysis)
Problem 6. (Hambley 1.74)
What type of controlled source appears in the circuit of Figure 5? Determine the value of vx
and iy .
Figure 5
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電工學(Circuit Analysis)
Problem 7. Rizzoni 2.24
For the circuit shown in Figure 6,determine which components are supplying power and
which are dissipating power. Also determine the amount of power dissipated and supplied.
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電工學(Circuit Analysis)
Problem 8. Rizzoni 2.23
For the circuit shown in Figure 7, determine which components are supplying power and
which are dissipating power. Also determine the amount of power dissipated and supplied.
Problem 9. Rizzoni 2.18
In the circuits of Figure 8, the directions of current and polarities of voltage have already
been define. Find the actual values of the indicated currents and voltages.
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電工學(Circuit Analysis)
Problem 10. Rizzoni 2.22
For the circuit shown in Figure 9:
a. Determine which components are absorbing power and which are delivering power.
b. Is conservation of power satisfied? Explain your answer.
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電工學(Circuit Analysis)
Problem 11. Rizzoni 2.40
Consider NiMH hobbyist batteries shown in the circuit of Figure 10.
a. If V1=12.0V, R1=0.15 Ω and RL=2.55 Ω , find the load current IL and the power
dissipated by the load.
b. If we connect a second battery in parallel with battery 1 that has voltage V2=12V and
R2=0.28Ω,will the load current IL increase or decrease? Will the power dissipated by the
load increase or decrease? By how much?
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