Description : Derive the relationship between α and β of a transistor.
Last Answer : Relationship between α and β of a transistor :
Description : Define α and β of the transistor.
Last Answer : α: The ratio of collector current IC to emitter current IE for a constant collector to base voltage VCB in the CB configuration is called current gain alpha (α). β : The ratio of collector ... a constant collector to emitter voltage VCE in the CE configuration is called current gain beta (β) .
Description : Define α & β and derive the relation between (α) &) (β) of transistor.
Last Answer : α : The ratio of output collector current IC to input emitter current IE in the CB configuration is called current gain alpha (α). β : The ratio of output collector current IC to the input base current IB in the CE configuration is ... ( 1/β) + 1 hence 1/ α = (1+β )/ β Therefore, α = β /(1+β)
Description : In the nutritional support of patients with cancer, which of the following statements is/are true? A. Nutritional support benefits the patient's lean body mass but does not enable ... with cancer about to undergo surgery revealed decreased morbidity and mortality, especially morbidity from sepsis.
Last Answer : Answer: B DISCUSSION: The problem with the patient with cancer is a very vexing one. Clearly, one of the metabolic effects of cancer, cachexia, affects patients in the last quartile ... undoubtedly reveal that there are certain nutrients that tumors require, which probably should be best avoided
Description : Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (ε0 ) with age/time (t) (where, ε = roughness of the surface after time't'. α = a co-efficient to be experimentally determined ... ε = ε0 + α.t 2 (C) ε = ε0 + α.t 3 (D) ε = ε0 + α.t
Last Answer : (A) ε = ε0 + α.t
Description : Inherent characteristics of amoeba and yeast that enable them to reproduce asexually? -Biology
Last Answer : answer:
Description : The slope of 9-line is determined by the (A) Reflux ratio (B) Plate efficiency to be achieved (C) Thermal condition of the feed (D) Relative volatility
Last Answer : (C) Thermal condition of the feed
Description : Select the correct statement. . A) Contour interval on any map is kept constant. (B) Direct method of contouring is cheaper than indirect method. (C) Intervisibility of points on a contour map cannot be ascertained. (D) Slope of a hill cannot be determined with the help of contours.
Last Answer : (A) Contour interval on any map is kept constant.
Description : In the common–emitter transistor circuit, if the current gain is 100 and the collector current is 10 mA, the base current is: (1) 10 µA (2) 100 µA (3) 1 A (4) 10 A
Last Answer : In the common–emitter transistor circuit, if the current gain is 100 and the collector current is 10 mA, the base current is: 100 µA
Description : In a transistor Colpitts oscillator, C1 = 0.001 µF, C2 = 0.01 µF and L = 5 µH. The frequency of oscillation in MHz will be (a) 2.37 MHz (b) 10.00 MHz (c) 11.54 MHz (d) 9.09 MHz
Last Answer : c
Description : A transistor has a typical value of β = 200 , If the collector current is 15 mA, then base current will be
Last Answer : A transistor has a typical value of β = 200 , If the collector current is 15 mA, then base current will be 0.075 mA
Description : Beta cut-off frequency of a transistor is the frequency at which the Beta is • 0.707 of low frequency value • Zero • Equal to low frequency value • None of the above.
Last Answer : Beta cut-off frequency of a transistor is the frequency at which the Beta is 0.707 of low frequency value
Description : If a transistor were operated with emitter and collector interchanged, then 1 .emitter current will increase 2. Collector current will increase 3. Base current will decrease 4. No current flow will take place
Last Answer : If a transistor were operated with emitter and collector interchanged, then Collector current will increase
Description : In a transistor 1. Emitter is heavily doped while the collector is moderately doped 2. Collector base junction is forward biased 3. Emitter is made wider than collector 4. The input resistance is much higher than output resistance
Last Answer : In a transistor Emitter is heavily doped while the collector is moderately doped
Description : In an npn transistor, _____ are the minority carriers. (a) Free electrons (b) Acceptor ions (c) Donor ions (d) Holes
Last Answer : In an npn transistor, Holes are the minority carriers.
Description : A transistor has ________ number of terminals. (A) 2 (B) 3 (C) 1 (D) 4
Last Answer : A transistor has 3 number of terminals.
Description : ICB0 in a transistor can be reduced by reducing: (1) IB (2) VCC (3) IE (4) Temperature
Last Answer : ICB0 in a transistor can be reduced by reducing: Temperature.
Last Answer : A Transistor has Two PN junctions
Last Answer : The most commonly used transistor circuit arrangement Common emitter
Last Answer : The function of Transistor is to do Amplification
Last Answer : A FET is a Bi-polar transistor
Last Answer : The encapsulation of transistor is necessary for mechanical ruggedness.
Last Answer : In a transistor leakage current mainly depends on temperature.
Last Answer : When a transistor is connected in common emitter mode, it with have medium input resistance and high output resistance.
Description : What is the main use of a transistor?
Last Answer : Main use of a transistor as amplifier and as switch.
Description : can transistor amplify dc?
Last Answer : No
Last Answer : Dual slope integration type analog to digital converter provide Very good accuracy without putting extreme requirements on component stability and Good rejection of power supply hum
Description : RC time constant characteristics, as shown in the illustration, are important in _____________. EL-0086 A. bridge rectifiers for alternator excitation B. timing and pulse shaping circuits C. transistor power amplifier biasing D. motor controller overload protection
Last Answer : Answer: B
Description : Explain about the characteristics of a transistor?
Last Answer : Input characteristics: it is drawn between input voltage & input current while keeping output voltage as constant. Output characteristics: It is drawn between the output voltage &output current while keeping input current as constant.
Description : Mention the characteristics of MOS transistor?
Last Answer : 1. The n- channel MOS conducts when its gate- to- source voltage is positive. 2. The p- channel MOS conducts when its gate- to- source voltage is negative 3. Either type of device is turned of if its gate- to- source voltage is zero.
Description : Draw: (i) Input characteristics of transistor in CE mode. (ii) Output characteristics of transistor in CE mode and show different regions on it.
Last Answer : (i) Input characteristics of transistor in CE mode. (ii) Output characteristics of transistor in CE mode and show different regions on it.
Description : Draw the V-I characteristics of power transistor.
Last Answer : V-I characteristics of power transistor:
Description : In modes 2 and 3, if _____ bit of SCON bit is set will causes enable multiprocessor communication and is of ____ bit address. a) SM1, 9EH b) TB8 , 9CH c) SM2 , 9DH d) SM0, 9FH
Last Answer : c) SM2 , 9DH
Description : Public key encryption method is a system a. which uses a set of public keys one for each participant in e-Commerce b. in which each person who wants to communicate has two keys; a private key known to him ... him. c. which uses the RSA coding system. d. which is a standard for use in e-Commerce.
Last Answer : b. in which each person who wants to communicate has two keys; a private key known to him only and a public key which is publicized to enable others to send message to him.
Description : For the purpose of Sec 3-C of these rule sexual harassment includes such unwelcome sexually determined behavior whether directly or otherwise as:- a) Physical contact as advances b) Demand or request ... other unwelcome physical, verbal or non-verbal conduct of a sexual nature e) All the above
Last Answer : c) Sexually colored remarks
Description : In what ways can site traffic help in assessing the market value? a. Overall site traffic can be followed, and a general idea of marketing's impact can be determined. b. There is no ... can be tracked d. Product sales from the company website can be attributed directly to the marketing campaign
Last Answer : c. Ads can send receivers to a specific landing page, which can be tracked
Description : How is site traffic useful in evaluating marketing? A. Overall site traffic can be followed and a general idea of marketing's impact on it can be determined B. There is no correlation ... be tracked D. Product sales from the company website can be attributed directly to the marketing campaign
Last Answer : C. Ads can send receivers to a specific landing page, which can be tracked
Description : How is site traffic useful in evaluating marketing? Overall site traffic can be followed and a general idea of marketing and its impact on It can be determined There is no ... be tracked Product sales from the company website can be attributed directly to the marketing campaign
Last Answer : Ads can send receivers to a specific landing page, which can be tracked
Description : Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have ... half-reactions are determined by combining the relevant half-cell with a standardised half-cell.
Last Answer : C The direction of a redox reaction can only be determined experimentally.
Description : Are a persons characteristics determined only by genes explain?
Last Answer : Need answer
Description : The division of kilowatt load between two paralleled alternators is determined by the _____________. A. amount of field excitation of the leading machine B. load-speed characteristics of the governors C. amount of field excitation to the lagging machine D. type of alternator
Description : The division of kilowatt load between two paralleled alternators is determined by the _____________. A. amount of field excitation to the leading machine B. load-speed characteristics of the governors C. amount of field excitation to the lagging machine D. number of field poles per alternator
Description : The important characteristics of the survey method is Options: A) It is capable for collecting data from a large group (population) simultaneously B) Here the work is being carried out on pre-determined problem C) The aims of this method are fixed and specific D) All the above statements are correct
Last Answer : D) All the above statements are correct
Description : A fuzzy set A on R is ................. iff A(λx1 + (1 – λ)x2) ≥ min [A(x1), A(x2)] for all x1, x2 ∈ R and all λ ∈ [0, 1], where min denotes the minimum operator. (A) Support (B) α-cut (C) Convex (D) Concave
Last Answer : (C) Convex
Description : The lossless line of characteristics impedance 300 Ohm is terminated in a pure resistance of 200 Ohm. The value of the standing wave ratio is (a) 1.5 (b) 0.67 (c) 1.0 (d) 1.25
Last Answer : The lossless line of characteristics impedance 300 Ohm is terminated in a pure resistance of 200 Ohm. The value of the standing wave ratio is 1.5
Description : Which of the following does not show non-linear V-I characteristics? (A) Schottky diode (B) Tunnel diode (C) Thermistor, at a fixed temperature (D) p-n Junction diode.
Last Answer : Which of the following does not show non-linear V-I characteristics? (A) Schottky diode (B) Tunnel diode (C) Thermistor, at a fixed temperature (D) p-n Junction diode.
Description : The load sharing characteristics of two diesel alternators operating in parallel are directly related to the setting of their governors' ____________. A. load limit B. idle speed C. speed limit D. speed droop
Last Answer : Answer: D
Description : Smoke point of kerosene expresses its (A) Burning characteristics (B) Luminosity characteristics (C) Aromatic content directly (D) Lamp wick wetting characteristics
Last Answer : (A) Burning characteristics
Description : You understand that segmentation in email marketing is important. Which one of the following is a key benefit of segmentation? Exhibit: Mark one answer: It allows you to communicate ... target groups. It allows you to personalize your message based on specific target audience characteristics
Last Answer : It allows you to personalize your message based on specific target audience characteristics