Solutions for Fundamentals of Electrical Engineering, 2nd
Edition Rizzoni (All Chapters Included)
Chapter 1: Basic Concepts
1. The SI unit of electric current is:
a) Volt
b) Ohm
c) Ampere
d) Watt
2. The fundamental charge of a single electron is approximately:
a) +1.602 × 10^-19 C
b) -1.602 × 10^-19 C
c) -1.0 C
d) +6.242 × 10^18 C
3. If 60 C of charge pass a point in 10 seconds, the current is:
a) 600 A
b) 6 A
c) 0.1667 A
d) 10 A
4. Power absorbed by a circuit element is positive when:
a) Current leaves the positive terminal
b) Current enters the positive terminal
c) The voltage is zero
d) The element is a source
5. The energy supplied by a 12 V battery providing 2 A for 10 seconds is:
a) 240 J
b) 24 J
c) 120 J
d) 60 J
Chapter 2: Resistive Circuits
6. The equivalent resistance of two 10 Ω resistors in parallel is:
a) 20 Ω
b) 5 Ω
,c) 10 Ω
d) 0.5 Ω
7. Kirchhoff's Current Law (KCL) states that:
a) The sum of voltages around a loop is zero
b) The sum of currents entering a node equals zero
c) Voltage equals current times resistance
d) Power is conserved in a loop
8. The voltage divider rule for two series resistors R1 and R2 states that V_R1 =
a) V_s * (R2/(R1+R2))
b) V_s * (R1/(R1+R2))
c) V_s * (R1/R2)
d) I_s * R1
9. A 1 kΩ resistor with a 10 mA current has a voltage drop of:
a) 100 V
b) 1 V
c) 10 V
d) 0.1 V
10. The superposition theorem is used for:
a) Nonlinear circuits only
b) Circuits with multiple sources
c) Finding Thevenin resistance
d) Calculating power in a resistor
Chapter 3: Nodal and Mesh Analysis
11. For nodal analysis, the reference node is often called the:
a) Supernode
b) Ground
c) Mesh
d) Loop
12. How many KVL equations are needed for a planar circuit with 5 meshes?
a) 4
b) 5
c) 6
d) 3
, 13. A supernode is required when:
a) Two nodes are connected by a voltage source
b) Two nodes are connected by a resistor
c) A current source is present
d) The circuit is non-planar
14. Mesh analysis is based primarily on:
a) KCL
b) KVL
c) Ohm's Law
d) Thevenin's Theorem
15. The primary unknown in nodal analysis is:
a) Mesh current
b) Node voltage
c) Branch power
d) Equivalent resistance
Chapter 4: Network Theorems
16. The Thevenin equivalent circuit consists of a:
a) Current source in parallel with a resistor
b) Voltage source in series with a resistor
c) Voltage source in parallel with a resistor
d) Current source in series with a resistor
17. Norton's theorem states that any linear network can be replaced by an equivalent:
a) Voltage source and series resistance
b) Current source and parallel resistance
c) Voltage source and parallel resistance
d) Current source and series resistance
18. The maximum power transfer theorem states maximum power is delivered when:
a) R_L = 0
b) R_L = ∞
c) R_L = R_Thevenin
d) R_L = 2 * R_Thevenin
19. Source transformation converts between:
a) Voltage and current sources with series/parallel resistance
b) Dependent and independent sources
, c) AC and DC sources
d) Ideal and real sources
20. To find the Thevenin resistance, all independent sources should be:
a) Replaced with their internal resistance
b) Short-circuited (voltage) and open-circuited (current)
c) Left as is
d) Converted to dependent sources
Chapter 5: Operational Amplifiers
21. An ideal op-amp has infinite:
a) Output impedance
b) Input impedance
c) Output voltage
d) Power consumption
22. In a negative feedback configuration, the two input terminals of an ideal op-amp are at:
a) Different voltages
b) The same voltage
c) Half the supply voltage
d) Ground potential
23. The closed-loop gain of an inverting amplifier is given by:
a) -R_f / R_in
b) 1 + (R_f / R_in)
c) R_f / R_in
d) -R_in / R_f
24. A voltage follower has a gain of:
a) -1
b) 0
c) +1
d) ∞
25. In an ideal op-amp, the current into the input terminals is:
a) Very high
b) Equal to the output current
c) Zero
d) Defined by the feedback resistor
Edition Rizzoni (All Chapters Included)
Chapter 1: Basic Concepts
1. The SI unit of electric current is:
a) Volt
b) Ohm
c) Ampere
d) Watt
2. The fundamental charge of a single electron is approximately:
a) +1.602 × 10^-19 C
b) -1.602 × 10^-19 C
c) -1.0 C
d) +6.242 × 10^18 C
3. If 60 C of charge pass a point in 10 seconds, the current is:
a) 600 A
b) 6 A
c) 0.1667 A
d) 10 A
4. Power absorbed by a circuit element is positive when:
a) Current leaves the positive terminal
b) Current enters the positive terminal
c) The voltage is zero
d) The element is a source
5. The energy supplied by a 12 V battery providing 2 A for 10 seconds is:
a) 240 J
b) 24 J
c) 120 J
d) 60 J
Chapter 2: Resistive Circuits
6. The equivalent resistance of two 10 Ω resistors in parallel is:
a) 20 Ω
b) 5 Ω
,c) 10 Ω
d) 0.5 Ω
7. Kirchhoff's Current Law (KCL) states that:
a) The sum of voltages around a loop is zero
b) The sum of currents entering a node equals zero
c) Voltage equals current times resistance
d) Power is conserved in a loop
8. The voltage divider rule for two series resistors R1 and R2 states that V_R1 =
a) V_s * (R2/(R1+R2))
b) V_s * (R1/(R1+R2))
c) V_s * (R1/R2)
d) I_s * R1
9. A 1 kΩ resistor with a 10 mA current has a voltage drop of:
a) 100 V
b) 1 V
c) 10 V
d) 0.1 V
10. The superposition theorem is used for:
a) Nonlinear circuits only
b) Circuits with multiple sources
c) Finding Thevenin resistance
d) Calculating power in a resistor
Chapter 3: Nodal and Mesh Analysis
11. For nodal analysis, the reference node is often called the:
a) Supernode
b) Ground
c) Mesh
d) Loop
12. How many KVL equations are needed for a planar circuit with 5 meshes?
a) 4
b) 5
c) 6
d) 3
, 13. A supernode is required when:
a) Two nodes are connected by a voltage source
b) Two nodes are connected by a resistor
c) A current source is present
d) The circuit is non-planar
14. Mesh analysis is based primarily on:
a) KCL
b) KVL
c) Ohm's Law
d) Thevenin's Theorem
15. The primary unknown in nodal analysis is:
a) Mesh current
b) Node voltage
c) Branch power
d) Equivalent resistance
Chapter 4: Network Theorems
16. The Thevenin equivalent circuit consists of a:
a) Current source in parallel with a resistor
b) Voltage source in series with a resistor
c) Voltage source in parallel with a resistor
d) Current source in series with a resistor
17. Norton's theorem states that any linear network can be replaced by an equivalent:
a) Voltage source and series resistance
b) Current source and parallel resistance
c) Voltage source and parallel resistance
d) Current source and series resistance
18. The maximum power transfer theorem states maximum power is delivered when:
a) R_L = 0
b) R_L = ∞
c) R_L = R_Thevenin
d) R_L = 2 * R_Thevenin
19. Source transformation converts between:
a) Voltage and current sources with series/parallel resistance
b) Dependent and independent sources
, c) AC and DC sources
d) Ideal and real sources
20. To find the Thevenin resistance, all independent sources should be:
a) Replaced with their internal resistance
b) Short-circuited (voltage) and open-circuited (current)
c) Left as is
d) Converted to dependent sources
Chapter 5: Operational Amplifiers
21. An ideal op-amp has infinite:
a) Output impedance
b) Input impedance
c) Output voltage
d) Power consumption
22. In a negative feedback configuration, the two input terminals of an ideal op-amp are at:
a) Different voltages
b) The same voltage
c) Half the supply voltage
d) Ground potential
23. The closed-loop gain of an inverting amplifier is given by:
a) -R_f / R_in
b) 1 + (R_f / R_in)
c) R_f / R_in
d) -R_in / R_f
24. A voltage follower has a gain of:
a) -1
b) 0
c) +1
d) ∞
25. In an ideal op-amp, the current into the input terminals is:
a) Very high
b) Equal to the output current
c) Zero
d) Defined by the feedback resistor
