0
For example , if you are conducting the RC coupled the amplifier, the will be frequency response curve , due to which cc ,cce and ccb of internal capacitance of the transistor ,
In that you have take the gain as 3db .. at frequency response ,they will ask why you have to select the #db.. instead of 3db you select $ or 6db's ..
I will tell the reason later !!!
Bye
Here are some potential analog electronics lab viva questions and answers:
Q: What is the purpose of a transistor? A: A transistor is a semiconductor device that can be used as an electronic switch or amplifier. It allows us to control the flow of current between two terminals by using a third terminal to apply a small signal that can turn the device on or off.
Q: What is a voltage divider and how does it work? A: A voltage divider is a circuit that allows us to divide a voltage into smaller portions. It consists of two resistors in series, and the voltage across the second resistor is proportional to the ratio of the two resistances. This is because the resistors create a voltage drop across them that is proportional to their resistance, and the total voltage is divided between them.
Q: What is a diode and how does it work? A: A diode is a two-terminal electronic component that allows current to flow in only one direction. It consists of a p-n junction, where one side of the junction is doped with a material that has an excess of holes (p-type) and the other side is doped with a material that has an excess of electrons (n-type). When a voltage is applied to the diode in the forward direction (i.e. with the positive terminal connected to the p-type material and the negative terminal connected to the n-type material), current can flow through the diode. However, when the voltage is applied in the reverse direction, the diode acts as an open circuit and no current can flow.
Q: What is the difference between an op-amp and a comparator? A: An op-amp is a type of amplifier that amplifies the difference between its two input terminals. It has a very high gain and can be used to amplify small signals to larger levels. A comparator, on the other hand, is a device that compares two voltages and outputs a digital signal indicating which voltage is higher. It has a very fast response time and is often used in digital circuits.
Q: What is the purpose of a capacitor in an AC circuit? A: A capacitor is an electronic component that stores electrical charge. In an AC circuit, it can be used to block DC signals and pass AC signals. This is because the capacitor charges and discharges in response to the AC signal, allowing the AC signal to pass through while blocking any DC component.
Q: What is the difference between a BJT and a MOSFET? A: A BJT (bipolar junction transistor) is a type of transistor that uses both electrons and holes to conduct current. It has three terminals: the base, the emitter, and the collector. A MOSFET (metal-oxide-semiconductor field-effect transistor) is a type of transistor that uses only electrons to conduct current. It has three terminals: the gate, the source, and the drain. MOSFETs are typically used in digital circuits, while BJTs are often used in analog circuits.
Q: What is the purpose of a feedback resistor in an op-amp circuit? A: A feedback resistor is used in an op-amp circuit to create negative feedback. This helps to stabilize the circuit and reduce distortion by providing a path for some of the output signal to be fed back into the input. The value of the feedback resistor determines the gain of the circuit, with higher values of resistance resulting in lower gain.
Q: What is the difference between a low-pass filter and a high-pass filter? A: A low-pass filter is a circuit that allows low-frequency signals to pass through while blocking high-frequency signals. It is often used to remove noise from a signal or to smooth out a signal by removing high-frequency components. A high-pass filter, on the other hand, is a
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What is the difference between power electronics and linear electronics?
Power electronics is study about controlling the power using electronics devices, Electronics is study about controlling the electrons flow&make amplification of electrons for required areas
Is IT better or electronics and communication engineering?
It is a subjective question meaning depends upon who you ask. I will try my best to answer it impartially as much as I can. The fundamental of both the branch is electronics. I mean foundation is the same for both the field. It starts to differ only in advance level courses. Electronics engineering has wide variety of application including Telecommunication. However, it is not only limited to one field rather applies to subsections of various field of electrical and electronics engineering. When it comes to profession, one will be better off specializing in one particular field like Digital, Analog, Microwave(RF), Mixed Signal, power electronics, Telecommunications etc. Now when it comes to electronics and telecommunication engineering, it will definitely have foundation electronics with more focus or specialized in Telecommunication. Telecomm is also rapidly growing field. So it all depends what you really want to do. As a matter of fact whichever field you study you may still be able to work in either field.
What is the difference between electrical and instrumentation engineering?
Electrical engineering deals with electrical lines, transformers, circuit breakers, power transmission , generation and distribution. Instrumentation engineering is a sub branch of electrical engg. but we can say that Instrumentation engg. is mixture of electrical, mechanical(somewhat), electronics, computer(somehow)..... Instrumentation deals with sensors, transducers, analog and digital controllers, automation etc... so main difference between Instru and Electrical is, Instru. for making plant Automatic and electrical for making plant powered with electricity ....
What is the data of the weather vane and is it analog or digital?
Analogue
Disadvantage of digital over analog instruments?
There are none except for the fact if the if the input signal has variations in value, with no filtering, the digital readouts can become a guess to read. Analog meters will average these variations as a wiggle of the needle so that the reading changes in a slower manner which is easier to read.
What is difference between computer engeneering and digital electronics?
The difference between computer engineering and digital electronics is that digital electronics represents signals. Computer engineering integrates several fields of computer science and electrical engineering to make computer systems. Digital electronics is the field of computers and computer controlled devices including the ones with analog inputs and outputs.
Diploma 3rd sem analog electronics question papers of electronics and communication?
SA
Is digital electronics is the best or analog electronics?
They have their own merits and demerits you can't say digital electronics is best because in real world everything is available in analog quantity. Although Digital electronics is more reliable in comparison of analog because there is very high reliability in the sense (effect of noise) and correction of errors that occurred during transmission of digital signal, while this is not possible in analog communication.
What are the Examples of solved problems in analog electronics?
many
Does semiconductor diodes come under analog electronics?
Yes.
How do the electrical pattern in electronics convey information?
With analog and digital signals.
What is the difference between power electronics and linear electronics?
Power electronics is study about controlling the power using electronics devices, Electronics is study about controlling the electrons flow&make amplification of electrons for required areas
What electronics were there in 1936?
Vacuum tube based electronics. Many kinds of radios were in use, including FM radios operating in the VHF band. Early versions of what would become RADAR were in secret development for the military of several countries. Electronic analog computers and mechanical analog computers using electronic torque amplifiers were available and were sold to and used by Universities, and Companies doing engineering designs. That is about it.
Electronic Instrumentation for measurement and control analog computing and simulation?
electronics instruments
What is analog image processing?
In electrical engineering and computer science, analog image processing is any image processing task conducted on two-dimensional analog signals by analog means (as opposed to digital image processing).
What has the author Joseph J Carr written?
Joseph J. Carr has written: 'Secrets of RF circuit design' -- subject(s): Radio circuits, Design and construction, OverDrive, Engineering, Nonfiction, Technology, Electronic circuit design 'Digital interfacing with an analog world' -- subject(s): Analog-to-digital converters, Computer input-output equipment, Digital-to-analog converters, Transducers 'CET license handbook' -- subject(s): Electronics, Examinations, questions 'Microcomputer interfacing' -- subject(s): Computer interfaces, Microcomputers 'Integrated electronics' -- subject(s): Linear integrated circuits, Operational amplifiers 'Digital electronics troubleshooting' -- subject(s): Digital electronics, Electronic apparatus and appliances, Maintenance and repair 'Old-Time Radios' -- subject(s): Amateurs' manuals, Radio, Repairing 'Elements of electronic instrumentation and measurement' -- subject(s): Electronic instruments, Electronic measurements
PUC 2 Electronics Most Important Questions?
Some common important topics in PUC 2 Electronics might include digital electronics, analog electronics, microcontrollers, communication systems, and electromagnetic theory. It's crucial to understand basic concepts, circuit analysis, and applications of these topics to excel in your exams. Practice solving previous year question papers and focus on understanding the fundamental theories behind these concepts.
