Bissoy.com
Doctors Medicines MCQs Q&A

When transistors are used in digital circuits they usually operate in the:

When transistors are used in digital circuits they usually operate in the: Correct Answer saturation and cutoff regions

Digital circuits work on two levels:

1) 1 represented by Logic High

2) 0 represented by Logic Low

These High and Low logic are obtained by switching the transistors ON and OFF.

  • When a transistor works as a switch it works in cut-off and saturation regions.
  • In the cut-off state, both the emitter-base junction and the collector-base junctions are reverse biased.
  • But in the saturation region, both the junctions are forward biased.

 

This is explained with the help of the following circuit diagram:

[ alt="SSC JE Electrical 91 12Q Jan 27th First Shift Hindi 1" src="//storage.googleapis.com/tb-img/production/19/03/SSC%20JE%20Electrical_91_12Q_Jan_27th_First%20Shift_Hindi_1.PNG" style="width: 362px; height: 267px;">

Saturation Region: ON transistor

Cut-off Region: OFF Transistor

Related Questions

Read the following passage and answer the item that follows. Your answers to this item should be based on the passage only. We live in digital times. The digital is not just something we use strategically and specifically to do a few tasks. Our very perception of who we are, how we connect to the world around us, and the ways in which we define our domains of life, labour and language are hugely structured by the digital technologies. The digital is everywhere and, like air, invisible. We live within digital systems, we live with intimate gadgets, we interact through digital media, and the very presence and imagination of the digital has dramatically restructured our lives. The digital, far from being a tool, is a condition and context that defines the shapes and boundaries of our understanding of the self, the society, and the structure of governance. Which among the following is the most logical and essential message conveyed by the above passage?
Based on the paragraph given below answer the following question: The traditional methods of combinational circuits involve simplification and realization using gates. Using these methods, complex functions have been integrated and are easily available in IC form. There is an attractive array of devices like a multiplexer, demultiplexer, decoders, comparators, parity generators/checkers, which significantly reduce IC package count there by reducing the system cost. The system design is greatly simplified because the laborious and time-consuming simplification methods are generally not required with these devices. This also improves the reliability of the system by reducing the number of external wired connections. But they have some limitations as well. Different memories like ROM, PROM can also be used to implement combinational circuits without much simplification.   Consider the following digital circuits. 1. Multiplexers 2. Read Only Memories 3. D-latch 4. Circuit as shown in figure below Which of these come under the class of combinational circuits?
The question given below consists of a statement, followed by three arguments numbered I, II and III. You have to decide which of the arguments is/are ‘strong’ arguments and which is/are ‘weak’ arguments and accordingly choose your answer from the alternatives given below each question. Statement: In an interview with ETCIO.COM, Kuruvilla Markose, Chief Digital Officer of Titan shares his perspective on how technology is serving the company’s digital vision and the various initiatives that he is spearheading to hone the competitive edge of Titan. He is the first CDO to be appointed by the software conglomerate Tata Group. He is the man who has put the Titan’s digital transformation on fast-track. Which of the following arguments support the fact that Kuruvilla Markose has put Titan’s digital transformation on fast-track? Arguments: I. Markose is a man with a vision. He is the first CDO to be appointed by the software conglomerate Tata Group. He has spent his entire two decade long career in Tata Group. He has been in customer facing roles across different group companies.  II. His CDO role is horizontal and supports Titan’s myriad business lines: watches, jewellery, bags, perfumes wallets, and eye-wear. But the man and his words are grounded. Diny, as he is popularly known, is a man of measured speech and bearing. III. “Digital innovation”, according to Markose, is all about creating value for the customer. To him, customer centricity is the road to longevity in the digital age. Under his stewardship, Titan has launched a panoply of digital initiatives aimed at improving customer centricity.
When transistors are used in digital circuits, they usually operate in the
In a 3-input CMOS NAND gate, the substrate terminals of NMOS transistors are grounded (lowest potential available in the circuit) and the substrate terminals of PMOS transistors are connected to VDD (maximum positive potential available in the circuit). Which of the following transistors may suffer in this circuit from the body bias effect?
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the suggested courses of action logically follow(s) for pursuing. Statement: Soon you would not need to carry original copies of all vehicle papers like driving licence, vehicle registration certificate, insurance, pollution certificate or the permits issued to commercial vehicles with you. According to a ToI report, the Centre plans to amend Motor Vehicles Rules to make it legal for any citizen to carry digital vehicle documents and simultaneously making it compulsory for traffic police to accept digital version of documents. This means that you would not have to carry physical papers in your vehicle as digital copies of the certificates would be valid.  Courses of action: I. The ministry has proposed installation of FASTags on the front windscreens. FASTag is a device that uses radio frequency identification (RFID) technology for making toll payments directly from the user account.  II. To avail the facility, one has to store all the vehicle documents on the government's cloud-based service DigiLocker and when asked he/she can simply display the stored certificates on a smartphone or any other digital devices. These digital copies can be shared with other departments as identity and address proof.  III. The government has increased the maximum load carrying capacity of heavy vehicles, including trucks, by 20-25 per cent besides scrapping the mandatory annual renewal of fitness certificates for freight carriers. Fitness certificates for trucks would now be renewed in every two years not annually.  Which of the following course/courses of action can be said to be said to be a rudimentary course/courses of action?
Which of the following is / are true about weak learners used in ensemble model?
1. They have low variance and they don't usually overfit
2. They have high bias, so they can not solve hard learning problems
3. They have high variance and they don't usually overfit
In the circuit shown in the figure, the channel length modulation of all transistors is non-zero (λ ≠ 0). Also, all transistors operate in saturation and have negligible body effect. The ac small signal voltage gain (Vo/Vin) of the circuit is
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
Consider the following circuits: 1. Full adder 2. Half adder 3. JK flip-flop 4. Counter Which of the above circuits are classified as sequential logic circuits?