Test Bank for Electronics
Fundamentals Circuits,
Devices & Applications 9th
Edition By Thomas Floyd,
David Buchla, Gary Snyder
(All Chapter 1-21, 100%
Original Verified, A+ Grade)
Answer at the end of each
Chapter.
Test Bank Part 1: Chapter 11-21
Test Bank Part 2: Chapter 1-10
All Chapter Arranged Reverse.
,Test Bank Part 1: Chapter 11-21
Electronics Fundamentals: Circuits, Devices, and Applications, 9th Edition
Chapter 11: Inductors
1) Any coil of wire with a current flowing through it exhibits inductance. (True/False)
2) An inductor stores energy in its electrostatic field. (True/False)
3) The phase angle of inductive reactance depends upon the frequency. (True/False)
4) Inductance is the opposition to any change in current. (True/False)
5) The unit of inductance is the henry. (True/False)
6) The Q of a coil is independent of frequency. (True/False)
7) Inductive reactance is the opposition to sinusoidal current. (True/False)
8) The unit of inductive reactance is the henry. (True/False)
9) The inverse of inductive reactance is inductive admittance. (True/False)
10) Inductance is the property of an inductor that causes inductor current to lead an applied sinusoidal
voltage. (True/False)
11) Self-inductance is another term for vind. (True/False)
12) The rate of change of magnetic flux and its proportional induced voltage is a form of Lenz's law.
(True/False)
13) Induced voltage is directly proportional to inductance and rate of change of current. (True/False)
14) When a sinusoidal voltage is applied to an inductor, the reactance changes the phase and frequency of the
current. (True/False)
15) Inductors in parallel increase the total vind in the circuit. (True/False)
16) The procedure for calculating the total inductance for inductors in parallel is the same as that for
calculating the total resistance for resistors in parallel. (True/False)
17) The procedure for calculating the total reactance for inductors is series is the same as that for calculating
the total resistance for resistors in parallel. (True/False)
18) The equation for calculating the ac voltages for an inductive voltage divider is the same as that for a
resistive voltage divider, but using inductive reactance rather than resistance. (True/False)
19) The time constant of an inductive circuit is dependent on the circuit's resistance. (True/False)
20) A length of wire is wound into a coil to:
A) concentrate the magnetic fields
B) increase the inductance
C) increase the reactance
D) all of the above
S4-109
, Electronics Fundamentals: Circuits, Devices, and Applications, 9th Edition
Chapter 11: Inductors
21) Cores made of plastic, cardboard, and other non-magnetic materials are classified with
A) air core inductors
B) paramagnetic core inductors
C) ferrite core inductors
D) variable core inductors
22) The two general categories of inductors are
A) iron core and air core
B) fixed and variable
C) non-magnetic core and ferrite core
D) encapsulated and non-insulated
23) When a voltage is induced into a conductor (or coil) as a result of a change in current through the
conductor, the phenomenon is called:
A) the henry
B) self-inductance
C) parasitic inductance
D) divine inductance
24) What is the inductance of an inductor with 100 windings of wire around a 10 cm cardboard core with a
diameter of 1.0 cm? (Note: µ = 1.26 × 10−6).
A) 1.26 µH
B) 4.95 µH
C) 9.90 µH
D) 19.9 µH
25) The value of an inductor can determined using
A) an LCR meter
B) its response to a square wave
C) bridge measurement
D) any of the above
26) Calculate the induced voltage across a 1.5 mH inductor when the current is changing at a rate of 2.0 mA
per microsecond.
A) 3.0 mV
B) 30 mV
C) 300 mV
D) 3.00 V
S4-110
, Electronics Fundamentals: Circuits, Devices, and Applications, 9th Edition
Chapter 11: Inductors
27) What is the total inductance in the circuit in Figure 11-1?
A) 602 mH
B) 800 mH
C) 2100 mH
D) 2600 μH
28) If the frequency in the circuit in Figure 11-1 is increased to 15 kHz, what is the total inductance?
A) 602 mH
B) 1600 mH
C) 5200 mH
D) 2600 μH
29) In addition to pure inductance, what other physical parameters does an inductor contain?
A) reactance
B) winding resistance
C) capacitance
D) both B and C
30) What is the total inductance in the circuit in Figure 11-2?
A) 69.0 mH
B) 34.5 mH
C) 13.3 mH
D) 75.2 mH
S4-111
Fundamentals Circuits,
Devices & Applications 9th
Edition By Thomas Floyd,
David Buchla, Gary Snyder
(All Chapter 1-21, 100%
Original Verified, A+ Grade)
Answer at the end of each
Chapter.
Test Bank Part 1: Chapter 11-21
Test Bank Part 2: Chapter 1-10
All Chapter Arranged Reverse.
,Test Bank Part 1: Chapter 11-21
Electronics Fundamentals: Circuits, Devices, and Applications, 9th Edition
Chapter 11: Inductors
1) Any coil of wire with a current flowing through it exhibits inductance. (True/False)
2) An inductor stores energy in its electrostatic field. (True/False)
3) The phase angle of inductive reactance depends upon the frequency. (True/False)
4) Inductance is the opposition to any change in current. (True/False)
5) The unit of inductance is the henry. (True/False)
6) The Q of a coil is independent of frequency. (True/False)
7) Inductive reactance is the opposition to sinusoidal current. (True/False)
8) The unit of inductive reactance is the henry. (True/False)
9) The inverse of inductive reactance is inductive admittance. (True/False)
10) Inductance is the property of an inductor that causes inductor current to lead an applied sinusoidal
voltage. (True/False)
11) Self-inductance is another term for vind. (True/False)
12) The rate of change of magnetic flux and its proportional induced voltage is a form of Lenz's law.
(True/False)
13) Induced voltage is directly proportional to inductance and rate of change of current. (True/False)
14) When a sinusoidal voltage is applied to an inductor, the reactance changes the phase and frequency of the
current. (True/False)
15) Inductors in parallel increase the total vind in the circuit. (True/False)
16) The procedure for calculating the total inductance for inductors in parallel is the same as that for
calculating the total resistance for resistors in parallel. (True/False)
17) The procedure for calculating the total reactance for inductors is series is the same as that for calculating
the total resistance for resistors in parallel. (True/False)
18) The equation for calculating the ac voltages for an inductive voltage divider is the same as that for a
resistive voltage divider, but using inductive reactance rather than resistance. (True/False)
19) The time constant of an inductive circuit is dependent on the circuit's resistance. (True/False)
20) A length of wire is wound into a coil to:
A) concentrate the magnetic fields
B) increase the inductance
C) increase the reactance
D) all of the above
S4-109
, Electronics Fundamentals: Circuits, Devices, and Applications, 9th Edition
Chapter 11: Inductors
21) Cores made of plastic, cardboard, and other non-magnetic materials are classified with
A) air core inductors
B) paramagnetic core inductors
C) ferrite core inductors
D) variable core inductors
22) The two general categories of inductors are
A) iron core and air core
B) fixed and variable
C) non-magnetic core and ferrite core
D) encapsulated and non-insulated
23) When a voltage is induced into a conductor (or coil) as a result of a change in current through the
conductor, the phenomenon is called:
A) the henry
B) self-inductance
C) parasitic inductance
D) divine inductance
24) What is the inductance of an inductor with 100 windings of wire around a 10 cm cardboard core with a
diameter of 1.0 cm? (Note: µ = 1.26 × 10−6).
A) 1.26 µH
B) 4.95 µH
C) 9.90 µH
D) 19.9 µH
25) The value of an inductor can determined using
A) an LCR meter
B) its response to a square wave
C) bridge measurement
D) any of the above
26) Calculate the induced voltage across a 1.5 mH inductor when the current is changing at a rate of 2.0 mA
per microsecond.
A) 3.0 mV
B) 30 mV
C) 300 mV
D) 3.00 V
S4-110
, Electronics Fundamentals: Circuits, Devices, and Applications, 9th Edition
Chapter 11: Inductors
27) What is the total inductance in the circuit in Figure 11-1?
A) 602 mH
B) 800 mH
C) 2100 mH
D) 2600 μH
28) If the frequency in the circuit in Figure 11-1 is increased to 15 kHz, what is the total inductance?
A) 602 mH
B) 1600 mH
C) 5200 mH
D) 2600 μH
29) In addition to pure inductance, what other physical parameters does an inductor contain?
A) reactance
B) winding resistance
C) capacitance
D) both B and C
30) What is the total inductance in the circuit in Figure 11-2?
A) 69.0 mH
B) 34.5 mH
C) 13.3 mH
D) 75.2 mH
S4-111
