201. Which of the following is considered a unipolar device?
A. Capacitor
B. Inductor
C. FET
D. BJT
202. Who invented the feedback amplifier in 1928?
A. Henry Brattain
B. Mark Twain
C. Harold Black
D. Bell Labs
203. The arrow in semiconductor symbol
A. Always points towards the P region and away from the N region
B. Always points towards the N region and away from the P region
C. Is not a significant symbol
D. Always points toward the PN junction
,204. If the input power of a half wave rectifier has a frequency of 400 Hertz, then the ripple
frequency will be equal to .
A. 800 Hertz
B. 200 Hertz
C. 100 Hertz
D. 400 Hertz
205. If the input frequency of a full-wave rectifier is 400 Hertz, the ripple frequency will be
.
A. Twice as great as the input frequency
B. Equal to the input frequency divided by two
C. Quadruple of the input frequency
D. Equal to a quarter of its input frequency
206. What is also called as the conventional amplifier?
A. Common-collector circuit
B. Emitter follower circuit
C. Common base circuit
D. Common emitter circuit
207. Which of the following is true about the emitter follower circuits?
A. The output signal is 180º out of phase with the input signal
B. The output signal is in phase with the input signal
C. The input signal is always equal to the output signal
D. An emitter follower circuit is equivalent to a common emitter connection
208. The equation for JFET's transconductance.
A. gm = ΔIc/ΔVGS
B. gm = IG/VG
C. gm = VGS/Ic
D. gm = Ic/VDS
,209. another name for a light activated diode (LAD) is
A. IR emitter
B. LED
C. Photodiode
D. LCD
, 210. The semiconductor device that radiate light or utilize light are called
A. Active devices
B. Photoelectric devices
C. Optoelectronic devices
D. Passive devices
211. Structural category of a semiconductor diodes can be either
A. Electrolytic and point contact
B. Junction and point contact
C. Electrolytic and vacuum
D. Vacuum and gaseous
212. Zener diodes can be primarily classified as
A. Forward and reverse biased
B. Varactor and rectifying
C. Voltage regulation and voltage reference
D. Gaseous and hot-carrier
213. The principal characteristics of a tunnel diode.
A. A constant current under conditions of varying voltage
B. A negative resistance region
C. A very high PIV device
D. An internal capacitance that varies with the applied voltage
214. A special type of semiconductor diode which varies its internal capacitance as the voltage
applied to its terminal varies.
A. Varactor diode
B. Point contact diode
C. Zener diode
D. Silicon controlled rectifier
215. The maximum forward current in a junction diode is limited by its
A. Capacitor
B. Inductor
C. FET
D. BJT
202. Who invented the feedback amplifier in 1928?
A. Henry Brattain
B. Mark Twain
C. Harold Black
D. Bell Labs
203. The arrow in semiconductor symbol
A. Always points towards the P region and away from the N region
B. Always points towards the N region and away from the P region
C. Is not a significant symbol
D. Always points toward the PN junction
,204. If the input power of a half wave rectifier has a frequency of 400 Hertz, then the ripple
frequency will be equal to .
A. 800 Hertz
B. 200 Hertz
C. 100 Hertz
D. 400 Hertz
205. If the input frequency of a full-wave rectifier is 400 Hertz, the ripple frequency will be
.
A. Twice as great as the input frequency
B. Equal to the input frequency divided by two
C. Quadruple of the input frequency
D. Equal to a quarter of its input frequency
206. What is also called as the conventional amplifier?
A. Common-collector circuit
B. Emitter follower circuit
C. Common base circuit
D. Common emitter circuit
207. Which of the following is true about the emitter follower circuits?
A. The output signal is 180º out of phase with the input signal
B. The output signal is in phase with the input signal
C. The input signal is always equal to the output signal
D. An emitter follower circuit is equivalent to a common emitter connection
208. The equation for JFET's transconductance.
A. gm = ΔIc/ΔVGS
B. gm = IG/VG
C. gm = VGS/Ic
D. gm = Ic/VDS
,209. another name for a light activated diode (LAD) is
A. IR emitter
B. LED
C. Photodiode
D. LCD
, 210. The semiconductor device that radiate light or utilize light are called
A. Active devices
B. Photoelectric devices
C. Optoelectronic devices
D. Passive devices
211. Structural category of a semiconductor diodes can be either
A. Electrolytic and point contact
B. Junction and point contact
C. Electrolytic and vacuum
D. Vacuum and gaseous
212. Zener diodes can be primarily classified as
A. Forward and reverse biased
B. Varactor and rectifying
C. Voltage regulation and voltage reference
D. Gaseous and hot-carrier
213. The principal characteristics of a tunnel diode.
A. A constant current under conditions of varying voltage
B. A negative resistance region
C. A very high PIV device
D. An internal capacitance that varies with the applied voltage
214. A special type of semiconductor diode which varies its internal capacitance as the voltage
applied to its terminal varies.
A. Varactor diode
B. Point contact diode
C. Zener diode
D. Silicon controlled rectifier
215. The maximum forward current in a junction diode is limited by its
