BIPOLAR JUNCTION TRANSISTOR 121. In what decade was the first transistor created? A) 1930s B) 1940s C) 1950s D) 1960s 122. How many layers of material does a transistor have? A) 1 B) 2 C) 3 D) 4 123. What is the ratio of the total width to that of the center layer for a transistor? A) 1:15 B) 1:150 C) 15:1 D) 150:1 124. Which of the following is (are) the terminal(s) of a transistor? A) Emitter B) Base C) Collector D) All of the above 125. List the types of bipolar junction transistors. A) ppn, npn B) pnp, npn C) npp, ppn D) nnp, pnp 126. Transistors are _____-terminal devices. A) 2 B) 3 C) 4 D) 5 127. How many carriers participate in the injection process of a unipolar …show more content…
Which component of the collector current IC is called the leakage current? A) Majority B) Independent C) Minority D) None of the above 129. For a properly biased pnp transistor, let IC = 10 mA and IE = 10.2 mA. What is the level of IB? A) 0.2 A B) 200 mA C) 200 µA D) 20.2 mA 130. Calculate minority current ICO if IC = 20.002 mA and IC majority = 20 mA. A) 2 µA B) 0.002 µA C) 2 nA D) 2 pA 131. Which of the following regions is (are) part of the output characteristics of a transistor? A) Active B) Cutoff C) Saturation D) All of the above 132. In which region are both the collector-base and base-emitter junctions forward-biased? A) Active B) Cutoff C) …show more content…
What is βdc equal to? A) IB / IE B) IC / IE C) IC / IB D) None of the above 136. What are the ranges of the ac input and output resistance for a common-base configuration? A) 10 Ω–100 Ω, 50 k Ω–1 MΩ B) 50 kΩ –1 MΩ, 10 Ω –100 Ω C) 10 Ω –100 kΩ, 50 Ω –1 kΩ D) None of the above 137. For what kind of amplifications can the active region of the common-emitter configuration be used? A) Voltage B) Current C) Power D) All of the above 138. Use this table of collector characteristics to calculate βac at VCE = 15 V and IB = 30 µA. A) 100 B) 106 C) 50 D) 400 139. Calculate βdc at VCE = 15 V and IB = 30 µA. A) 100 B) 116 C) 50 D) 110 140. Which of the following configurations can a transistor set up? A) Common-base B) Common-emitter C) Common-collector D) All of the above 141. Determine the value of α when β = 100. A) 1.01 B) 101 C) 0.99 D) Cannot be solved with the information provided 142. What is the most frequently encountered transistor configuration? A) Common-base B) Common-collector C) Common-emitter D) Emitter-collector 143. βdc for this set of collector characteristics is within _____ percent of
UV-254 nm, 15 V, 60 Hz, 0.16 A). Masses were taken on a Mettler AE 100. Rotary
2. Width of the base which divided to 3 groups: 1: More than 5 mm; 2: between 3-5 mm; less than 3 mm.
This shows that there is a difference of 2cm between A and B, and B
Service Corporation International (SCI) is an international company that owns and operates cemeteries, funeral homes, crematories and sells caskets, urns, and vaults. SCI is the largest owner of funeral homes and cemeteries in the United States and also operates in Germany, South America and Canada. According to Business Week the funeral or deathcare industry makes over $16 billion a year in the United States and is made up of approximately 25,000 small businesses that are sought after by large companies such as SCI, and a handful of larger corporations.
In the Lester Electronics Scenario, there are several things going on at once. Shang-Wa had already suggested a partnership to Lester Electronics, but this is now becoming more urgent due to a hostile takeover bid by TEC. In fear of losing
In my experiment, I will use an overall volume of 50 cm³ of 2moles of
Part 1. (a) Define each, (b) Explain its significance, (c) where indicated with this symbol * provide an example.
-443.08 x (100.1 / 2.51) = -17670.2 J.mol. 1. H = -17.67 kJ.mol. 1.
between BaCl and BaSO, and that AW of 1 mol of BaSO = 233.404, so we
Step 1: EER = 354 – 207.3 + [1.45 X (9.361 X 59.02 + 726 X 1.651)].
Write down the following problem using a pencil and a sheet of paper: (See Figure 1)
...ia Britannica. 2014. law of octaves (chemistry) -- Encyclopedia Britannica. [ONLINE] Available at:http://www.britannica.com/EBchecked/topic/424834/law-of-octaves. [Accessed 14 May 2014].
The ratio for length to width of rectangles is 1.61803398874989484820. The numeric value is called “phi”.
g. of KI in 10 mL of water. Add the KI solution dropwise to the test