Solutions Manual — Electrical Engineering:
Principles & Applications, 7th Edition — Allan
R. Hambley
Chapter 1: Introduction
1. The fundamental SI unit of electric charge is the:
a) Volt
b) Coulomb
c) Ampere
d) Ohm
2. The current through a wire is defined as the rate of change of:
a) Voltage
b) Energy
c) Charge
d) Power
3. The energy required to move 1 C of charge through an element is its:
a) Current
b) Power
c) Voltage
d) Resistance
Chapter 2: Resistive Circuits
4. Ohm's Law states that voltage across a resistor is:
a) Inversely proportional to current
b) Proportional to resistance and current
c) Proportional to power
d) Independent of current
5. The equivalent resistance for two resistors R1 and R2 connected in series is:
a) R1 + R2
b) 1/R1 + 1/R2
c) (R1*R2)/(R1+R2)
d) R1 - R2
, 6. Kirchhoff's Voltage Law (KVL) states that the algebraic sum of all voltages around any
closed loop is:
a) Equal to the source current
b) Equal to the total power
c) Zero
d) Equal to the total resistance
7. The power absorbed by a 10Ω resistor with 2A flowing through it is:
a) 20W
b) 40W
c) 0.2W
d) 200W
8. The voltage-divider principle finds the voltage across a series resistor proportional to:
a) Its conductance
b) Its resistance
c) The total current
d) The source power
Chapter 3: Inductance and Capacitance
9. The voltage across an inductor is proportional to the rate of change of:
a) Voltage
b) Current
c) Charge
d) Power
10. The energy stored in an inductor is given by:
a) ½ C v²
b) ½ L i²
c) L di/dt
d) C dv/dt
11. Capacitors in series combine like:
a) Resistors in series
b) Resistors in parallel
c) Inductors in series
d) Conductors in parallel
12. The current through a capacitor is proportional to the rate of change of:
a) Current
, b) Voltage
c) Energy
d) Charge
Chapter 4: Transients
13. The time constant for an RL circuit is:
a) R/L
b) L/R
c) RC
d) 1/RC
14. The time constant for an RC circuit is:
a) RC
b) L/R
c) R/L
d) 1/RC
15. In a first-order RC circuit, the capacitor voltage reaches approximately 63.2% of its final
value in:
a) One time constant
b) Two time constants
c) Three time constants
d) Four time constants
Chapter 5: Steady-State Sinusoidal Analysis
16. The root-mean-square (RMS) value of a sinusoidal voltage is related to its peak value by:
a) V_rms = V_peak
b) V_rms = V_peak / √2
c) V_rms = √2 * V_peak
d) V_rms = π * V_peak
17. The phase angle of a complex impedance Z = 3 + j4 Ω is:
a) 36.9°
b) 53.1°
c) 45°
d) 90°
18. For a purely resistive AC circuit, the phase angle between voltage and current is:
a) 90°
b) -90°
, c) 180°
d) 0°
19. The imaginary part of a complex impedance is called:
a) Resistance
b) Reactance
c) Admittance
d) Conductance
20. The unit of impedance is the:
a) Siemen
b) Ohm
c) Henry
d) Farad
Chapter 6: Frequency Response, Bode Plots, and Resonance
21. The half-power points in a frequency response curve correspond to a gain reduction of:
a) 50%
b) 3 dB
c) 6 dB
d) 20 dB
22. At the resonant frequency of a series RLC circuit, the impedance is:
a) Maximum
b) Minimum and purely resistive
c) Purely inductive
d) Purely capacitive
23. The bandwidth of a resonant circuit is inversely proportional to its:
a) Resonant frequency
b) Quality factor (Q)
c) Resistance
d) Inductance
Chapter 7: Logic Circuits
24. The output of an AND gate is HIGH only when:
a) Any input is HIGH
b) All inputs are HIGH
c) All inputs are LOW
d) An odd number of inputs are HIGH
Principles & Applications, 7th Edition — Allan
R. Hambley
Chapter 1: Introduction
1. The fundamental SI unit of electric charge is the:
a) Volt
b) Coulomb
c) Ampere
d) Ohm
2. The current through a wire is defined as the rate of change of:
a) Voltage
b) Energy
c) Charge
d) Power
3. The energy required to move 1 C of charge through an element is its:
a) Current
b) Power
c) Voltage
d) Resistance
Chapter 2: Resistive Circuits
4. Ohm's Law states that voltage across a resistor is:
a) Inversely proportional to current
b) Proportional to resistance and current
c) Proportional to power
d) Independent of current
5. The equivalent resistance for two resistors R1 and R2 connected in series is:
a) R1 + R2
b) 1/R1 + 1/R2
c) (R1*R2)/(R1+R2)
d) R1 - R2
, 6. Kirchhoff's Voltage Law (KVL) states that the algebraic sum of all voltages around any
closed loop is:
a) Equal to the source current
b) Equal to the total power
c) Zero
d) Equal to the total resistance
7. The power absorbed by a 10Ω resistor with 2A flowing through it is:
a) 20W
b) 40W
c) 0.2W
d) 200W
8. The voltage-divider principle finds the voltage across a series resistor proportional to:
a) Its conductance
b) Its resistance
c) The total current
d) The source power
Chapter 3: Inductance and Capacitance
9. The voltage across an inductor is proportional to the rate of change of:
a) Voltage
b) Current
c) Charge
d) Power
10. The energy stored in an inductor is given by:
a) ½ C v²
b) ½ L i²
c) L di/dt
d) C dv/dt
11. Capacitors in series combine like:
a) Resistors in series
b) Resistors in parallel
c) Inductors in series
d) Conductors in parallel
12. The current through a capacitor is proportional to the rate of change of:
a) Current
, b) Voltage
c) Energy
d) Charge
Chapter 4: Transients
13. The time constant for an RL circuit is:
a) R/L
b) L/R
c) RC
d) 1/RC
14. The time constant for an RC circuit is:
a) RC
b) L/R
c) R/L
d) 1/RC
15. In a first-order RC circuit, the capacitor voltage reaches approximately 63.2% of its final
value in:
a) One time constant
b) Two time constants
c) Three time constants
d) Four time constants
Chapter 5: Steady-State Sinusoidal Analysis
16. The root-mean-square (RMS) value of a sinusoidal voltage is related to its peak value by:
a) V_rms = V_peak
b) V_rms = V_peak / √2
c) V_rms = √2 * V_peak
d) V_rms = π * V_peak
17. The phase angle of a complex impedance Z = 3 + j4 Ω is:
a) 36.9°
b) 53.1°
c) 45°
d) 90°
18. For a purely resistive AC circuit, the phase angle between voltage and current is:
a) 90°
b) -90°
, c) 180°
d) 0°
19. The imaginary part of a complex impedance is called:
a) Resistance
b) Reactance
c) Admittance
d) Conductance
20. The unit of impedance is the:
a) Siemen
b) Ohm
c) Henry
d) Farad
Chapter 6: Frequency Response, Bode Plots, and Resonance
21. The half-power points in a frequency response curve correspond to a gain reduction of:
a) 50%
b) 3 dB
c) 6 dB
d) 20 dB
22. At the resonant frequency of a series RLC circuit, the impedance is:
a) Maximum
b) Minimum and purely resistive
c) Purely inductive
d) Purely capacitive
23. The bandwidth of a resonant circuit is inversely proportional to its:
a) Resonant frequency
b) Quality factor (Q)
c) Resistance
d) Inductance
Chapter 7: Logic Circuits
24. The output of an AND gate is HIGH only when:
a) Any input is HIGH
b) All inputs are HIGH
c) All inputs are LOW
d) An odd number of inputs are HIGH
