emirates aviation university Emirates dnata Questions i. Include necessary steps for all solutions ii. Round off to at least three decimal points for numerical solutions 1. i) Give the structure and symbol of a p-n-p transistor with regions labelled. ii) Name the lightly doped terminal of BJT 2. Determine IB, IC, IE, VCE, VCB for the given transistor if the dc gain is 100 and Vcc 22 V. (Include steps for solution) 3M (2+1) 5M Re 1.0 ΚΩ Ra ww 22 ΚΩ PDC = 100 Vec VBB 5V 3. i. Convert to hexa decimal number system (show working): 235.6710 ii. Determine the SOP expression for the given truth table using Karnaugh map: ABCF 0001 0011 0100 0111 100 1 101 1 1100 111 0 4. i. Simplify using Boolean Algebra: AAB + ABC 4M (2+2) 13M (2+4+7) Fall 2024 BUSINESS DOCUMENT This document is intended for business use and should be distributed to intended recipients only. Page 1 of 4

RL 4. Suppose one NPN transistor is working under activation region, and Ip=0.005A. 12 What's the value of Ic given B=100. What's the value of I-? Vcc VE

How does the construction of a transistor differ from the construction of a PN junction diode? What are the two types of transistors? What are the three parts of a transistor called? Draw and label the schematic symbols for an NPN and a PNP transistor. What are transistors used for? How are transistors classified? What symbols are used to identify transistors? What purposes does the packaging of a transistor serve? How are transistor packages labeled? What are the basic functions of a transistor? What is the proper method for biasing a transistor? What is the difference between biasing an NPN and a PNP transistor? What is the barrier voltage for a germanium and a silicon transistor? What is the difference between the collector-base junction and the emitter- base junction bias voltages? What may cause a transistor to fail? What are two methods of testing a transistor? When using an ohmmeter, what should the results be for an NPN transistor? What are the two…

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1. For the circuit in Figure 1: a) Calculate the input and output power if the input signal results in a base current of 5 mA ms. b) Calculate the input power đissipated by the circuit if Rs is changed to 1.5 kQ. c) What maximum output power can be delivered by the circuit if RE is changed tol.5 kQ? d) If the circuit is biased at its center voltage and center collector operating point, what is the input power for a maximum output power of 1.5 W? +Vcc (18 V) Re = 16 2 1.2 kS2 B-40 100 pF Figure 1

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The mode of operation for the D-MOSFET is Select one: a. the ohmic region only b. the enhancement mode only c. both the depletion and enhancement modes d. the depletion mode only

Sketch the basic construction of the two types of BJT Transistors and label the various minority and majority carriers in each. Draw the symbol with the three terminals. Is any of this information altered by changing from a silicon to a germanium base?

Consider the BJT transistor circuit in Figure 1. If DC  = 150 and VBE = 0.65V, calculate:Base (IB), collector (IC), emitter (IE) currents, voltages VB, VC, VE, VCE and VCB. And what is PD(max) at 75OC? If the power dissipation derating factor for the transistor is 2mW/oC and the PD(max) is0.5 W at 25OC

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