Sketch the single tuned amplifier.

Sketch the single tuned amplifier.
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single tuned amplifier

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Draw the circuit of single tuned amplifier and state its operating principle.

Description : Draw the circuit of single tuned amplifier and state its operating principle.

Last Answer : Operating Principle: The working of tuned voltage amplifier may be understood by considering a radio frequency signal, to be amplified applied at the input of the amplifier. The resonant frequency ... will be amplified. And all the other frequencies will be rejected by the tuned circuit. 

Draw the single stage class A power amplifier circuit diagram and draw the input and output waveforms.

Description : Draw the single stage class A power amplifier circuit diagram and draw the input and output waveforms.

Last Answer : Circuit diagram:- Input / Output waveforms:-

List the types of power amplifier.

Description : List the types of power amplifier.

Last Answer : Types of Power amplifier: 1) Class A power amplifier 2) Class B power amplifier 3) Class AB power amplifier 4) Class C power amplifier

State and explain the working principle of FET amplifier and list its applications.

Description : State and explain the working principle of FET amplifier and list its applications.

Last Answer : Operation of FET amplifier: When small a.c. signal is applied to the gate, it produces variation in the gate to source voltage. This results in variation in the drain current. As ... input voltage.  Application: Buffer amplifier Low noise amplifier Cascade amplifier Chopper amplifier

Compare between class A and class B amplifier on the basis of (i) Efficiency (ii) Power (iii) Position of Q- point (iv) O/P distortion

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Last Answer : Parameter Class A Class B 

Draw the circuit diagram of complementary symmetry Class B push-pull amplifier and describe its working.

Description : Draw the circuit diagram of complementary symmetry Class B push-pull amplifier and describe its working.

Last Answer : Diagram of complementary symmetry Class B push-pull amplifier: Working: The above circuit employs a NPN transistor and a PNP transistor connected in push pull configuration. When the input ... of class B, this circuit is termed as Complementary symmetry push pull class B amplifier.

Draw the multistage amplifier circuit diagram using RC coupling. State its advantages.

Description : Draw the multistage amplifier circuit diagram using RC coupling. State its advantages.

Last Answer : Advantages: 1. It has a wide frequency response. 2. For coupling the resistor and the capacitor are used and which are not expensive so the cost is low. 3. The circuit is very ... a wide frequency band. 5. It is high fidelity amplifier. 6. It provides less frequency distortion.

Draw the frequency response of DC amplifier. Comment on it.

Description : Draw the frequency response of DC amplifier. Comment on it.

Last Answer : frequency response: Comment : The gain remains constant at its midband value AM down to zero frequency (DC). Directcoupled amplifiers do not suffer gain reduction at low frequencies as compared ... , gain falls off at the high frequency end due to the internal capacitances of the transistor.

List applications of power amplifier.

Description : List applications of power amplifier.

Last Answer : Below are the applications of power amplifiers across different sectors: 1.Consumer Electronics: Audio power amplifiers are used in almost all consumer electronic devices ranging from microwave ovens, ... data transfer rates and usability. They are also used in satellite communication equipment.

State the need and types of amplifier coupling.

Description : State the need and types of amplifier coupling. 

Last Answer : Need of amplifier coupling: 1.When ever large amplifier with very good impedance matching is required, a signal stage amplifier circuit will not able to amplify the signal to a large extent. 2 ... 2.Transformer coupled amplifier 3.Direct coupled amplifier 4. Inductance (LC) coupling

Give the classification of tuned amplifier

Description : Give the classification of tuned amplifier

Last Answer : (i) Small signal tuned amplifier *Single tuned *Double tuned *Stagger tuned (ii) Large signal tuned amplifier.

What is the need for a tuned amplifier?

Description : What is the need for a tuned amplifier?

Last Answer : In radio or TV receivers , it is necessary to select a particular channel among all other available channels.Hence some sort of frequency selective circuit is needed that will allow us to amplify ... and reject all the other unwanted signals and this function is provided by a tuned amplifier.

Which of the following methods cannot be used to increase the bandwidth for cascaded RF amplifier stages? A) Wave traps in each stage B) Stagger tuning C) A shunt damping resistor across each tuned circuit D) Doubled tuned transformers with tighter coupling

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Last Answer : A) Wave traps in each stage

Which of the following circuit would be preferred for a 455 kHz IF amplifier? A) A resistance loaded B) Double tuned transformer C) Video amplifier D) Class C

Description : Which of the following circuit would be preferred for a 455 kHz IF amplifier? A) A resistance loaded B) Double tuned transformer C) Video amplifier D) Class C

Last Answer : B) Double tuned transformer

Explain stagger tuned amplifier with the help of waveforms.

Description : Explain stagger tuned amplifier with the help of waveforms.

Last Answer : Circuit Diagram: Above figure shows two-stage tuned voltage amplifier. The stagger tuning in this circuit, may be achieved by resonating the tuned circuits L1C1 and L2C2 to slightly different ... outside the pass-band. Because of the stagger tuning there is a loss of voltage gain.

Describe the operation of double tuned amplifier with the help of neat circuit diagram and mention its applications.

Description : Describe the operation of double tuned amplifier with the help of neat circuit diagram and mention its applications.

Last Answer : Circuit diagram: Operation:  *The signal to be amplified is applied at the input terminal through the coupling capacitor CC  *The resonant frequency of the tuned circuit L1 C1 is made equal ... : (i) Radio and T .V broadcasting as tuning circuit. (ii) Wireless communication system.

State the need of tuned amplifier in electronic circuits.

Description : State the need of tuned amplifier in electronic circuits.

Last Answer : Necessity of tuned amplifier: 1. Selection of the desired radio frequency signal. 2. Amplification of the selected signal to a selected voltage level.

role of tuned LC circuit in tuned amplifier.

Description : role of tuned LC circuit in tuned amplifier.

Last Answer : In order to pick up and amplify the desired radio frequency signal, the resistive load in the audio amplifier is replaced by a tuned circuit (also called a parallel resonant circuit)as shown ... desired radio frequency signal. (ii)Amplification of the selected signal to a suitable voltage level.

Sketch p-channel JFET construction.

Description : Sketch p-channel JFET construction.

Last Answer : p- channel JFET constructional diagram:

Sketch circuit diagram of common source FET Amplifier. State working principle of it.

Description : Sketch circuit diagram of common source FET Amplifier. State working principle of it.

Last Answer : Working: -  * When small a.c. signal is applied to the gate, it produces variation in the gate to source voltage. This produces variation in the drain current. As the gate to source ... and we get amplification. Thus the AC output voltage VDS is 180º out of phase with AC input voltage.

Describe the operation of class-C type of power amplifier with the help of neat sketch.

Description : Describe the operation of class-C type of power amplifier with the help of neat sketch.

Last Answer : Circuit diagram: Operation: * Class C power amplifier is a type of amplifier where the transistor conducts for less than one half cycle of the input signal. Less than one ... resonant circuit oscillates in one frequency (generally the carrier frequency) all other frequencies are attenuated. 

Explain the operating principle of PNP transistor.

Description : Explain the operating principle of PNP transistor. 

Last Answer : The circuit connection of PNP transistor with supply voltages is as shown above. The emitter-base junction is connected as forward bias. Due to this the emitter pushes the holes from the P ... by the collector. This develops the collector current IC. This is how a PNP transistor operates. 

Define intrinsic standoff ratio.

Description : Define intrinsic standoff ratio.

Last Answer : It is defined as the ratio of the RB1 (base resistance 1) to the inter-base resistance RBB. 

State 2 advantages of JFET over BJT.

Description : State 2 advantages of JFET over BJT.

Last Answer : Advantages of JFET over BJT: 1) High input impedance 2) Better thermal stability 3) Produce less noise 4) Smaller than BJT 5) Rugged in construction and simpler to fabricate 6) High degree of isolation between Input and Output. 

Which type of MOSFET is called Normally ON MOSFET”? Why?

Description : Which type of MOSFET is called Normally ON MOSFET”? Why? 

Last Answer : DMOSFET is called Normally ON MOSFET. In DMOSFET already channel is present and at Vgs = 0v, drain current Id=Idss i.e. drain to source saturation current is flowing. 

Define gain and bandwidth.

Description : Define gain and bandwidth. 

Last Answer : Gain: It is the ratio of output quantity to the input quantity. Bandwidth: It is defined as the range (band) of frequency over which the gain is constant.  (Or) It is the range of frequency over which the gain is greater than 70.7% of the maximum gain possible

State any four applications of transistor.

Description : State any four applications of transistor.

Last Answer : Amplifier

Draw the characteristics of UJT and state its working principle.

Description : Draw the characteristics of UJT and state its working principle.

Last Answer : The characteristics of Unijunction Transistor (UJT) can be explained by three parameters: * Cutoff Region * Negative Resistance Region * Saturation Region Cutoff Region : The ... in its ON position. The emitter voltage VE remains almost constant with the increasing emitter current.

Draw the labeled circuit of RC phase shift oscillator. State the formula for frequency of oscillator.

Description : Draw the labeled circuit of RC phase shift oscillator. State the formula for frequency of oscillator.

Last Answer : Frequency of oscillation is given by,

State the basic principle of piezoelectric crystal and draw the circuit diagram of crystal oscillator.

Description : State the basic principle of piezoelectric crystal and draw the circuit diagram of crystal oscillator.

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Draw the input and output characteristics of CE configuration.

Description : Draw the input and output characteristics of CE configuration.

Last Answer : Input characteristics of CE configuration: Output characteristics of CE configuration:

Draw the circuit diagram of Bootstrap’s time base generator and explain its working.

Description : Draw the circuit diagram of Bootstrap’s time base generator and explain its working.

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Draw the construction of p-channel D-MOSFET and state its working principle.

Description : Draw the construction of p-channel D-MOSFET and state its working principle. 

Last Answer : Construction of p-channel D-MOSFET: Working principle: The gate to source voltage is set to zero volts by the direct connection from one terminal to the other & voltage VDS is applied ... The value of voltage of VGS at which drain current nearly becomes zero is called cut off voltage. 

Draw the drain characteristics of p-channel FET and explain.

Description : Draw the drain characteristics of p-channel FET and explain.

Last Answer : Drain characteristics:- As VDS is increased from zero as shown , ID will increased proportionally through the p channel. In this region the channel resistance is constants because the depletion region is ... the depletion layer. (i.e. channel width zero) is called cutoff voltage or VGS(off).

Draw the circuit and explain the operation of UJT relaxation oscillator.

Description : Draw the circuit and explain the operation of UJT relaxation oscillator. 

Last Answer : Working: When the supply voltage (VCC) is switched ON, the capacitor charges through resistor (R), till the capacitor voltage reaches the voltage level (VP) which is called as peak point voltage. At ... resistor R is shown as a variable resistor. The sweep period is given by the relation

Draw the transfer characteristics for N-channel JFET.

Description : Draw the transfer characteristics for N-channel JFET.

Last Answer : Transfer characteristics for N-channel JFET: 

Define the following terms: (i) Stabilization (ii) Thermal runaway

Description : Define the following terms: (i) Stabilization (ii) Thermal runaway

Last Answer : Stabilization: The process of making operating point independent of temperature changes or variation in transistor parameter is known as stabilization. The maintenance of the operating point stable is called the ... happens, the device gets burnt out. This process is known as Thermal Runaway .

State the need of biasing and describe the concept of DC load line

Description : State the need of biasing and describe the concept of DC load line

Last Answer : Need of Biasing for Transistor: The transistor should be biased in the active region if it is to be used for amplification and in saturation and cut off if it is used as a switch. 2. The Q ... The position of operating point on the load line is dependent on the application of the transistor.

State the need of regulation. Explain the concept of load & line regulation.

Description : State the need of regulation. Explain the concept of load & line regulation.

Last Answer : Need of Regulation: The major disadvantage of a power supply is that the output voltage changes with the variations in the input voltage or the DC output voltage of the rectifier also increase similarly. In ... the change in output voltage that will occur per unit change in the input voltage. 

State the working principle of UJT

Description : State the working principle of UJT

Last Answer : Figure shows the equivalent circuit of a unijunction transistor with voltage source VEE connected across emitter and base 1 and VBB connected across base 1 and base 2. Hence the Emitter diode is reversed ... emitter current begins to flow ,the UJT is said to be fired, triggered or turned on.

Draw symbol for n-channel and p-channel MOSFET.

Description : Draw symbol for n-channel and p-channel MOSFET.

Last Answer : Symbol n-channel and p-channel MOSFET :   OR  

Define Q-point

Description : Define Q-point 

Last Answer : Q-point: For proper operation of transistor, in any application, we set fixed levels of certain voltages and currents in a transistor. These values of currents and voltages define the point, at which ... . This point is called operating point. It is also known as quiescent point or Q point.

Name two types of BJT &draw their symbols.

Description : Name two types of BJT &draw their symbols. 

Last Answer : Two types of BJT: * NPN * PNP 

Do you know of a good site for looking at well tuned late modeled Honda cars?

Description : Do you know of a good site for looking at well tuned late modeled Honda cars?

Last Answer : http://aerocivic.com/

How well fine-tuned or keen is your situational awareness?

Description : How well fine-tuned or keen is your situational awareness?

Last Answer : answer:I am a big chicken with a very well-tuned situational awareness radar. I do not tempt the fates by going out into a dangerous situation without the tools (or clothes) to protect ... boundaries, so I have a choice of being proactive and protecting myself, or watching the inevitable happen.

Is a fine-tuned universe evidence of intelligent design and therefore proof of Gods existence?

Description : Is a fine-tuned universe evidence of intelligent design and therefore proof of Gods existence?

Last Answer : Not according to Stephen Hawking. It is a result if imperfections and randomness.

Anyone know of a really fine-tuned equalizer for Windows?

Description : Anyone know of a really fine-tuned equalizer for Windows?

Last Answer : I have heard that people like WebEQ but I have never tried it.

" Fair Luke 's name This The product is from AbzyBD.com To buy I want to Because TV On the screen Of Name Given Stay tuned _ Want |?

Description : The product What? Here From Order If you do The real thing Found Will go Although On TV Just write Abzy.com Stays | Delivery How ?

Last Answer : Yes You Product T. Getting Go. Product To buy Before Ask By Take it That Product Tite " bar Code " _ Whether. To buy After If See That " Bar " in the product Code " No Then Product Duplicate Or ... To do Want Then I will say This Yours Skin Damage By To give Yes , that's right Be careful Stay.

Why are the guitar strings tuned?

Description :  My guitar tunes in a few days. Why is that? 

Last Answer : Sure, because you tear the strings a lot and they stretch ... :) Anyway, if the guitar is loose and unwinds easily, it can also cause it, because the strings can easily come loose.

Where is the guitar tuned?

Description : What do you use to find a Spanish guitar?

Last Answer : The tuner they sell in every piece of music. Digitally indicates whether you are above or below the string.