List two types of oscillator, which generates frequency in RF range.

List two types of oscillator, which generates frequency in RF range.
by

1 Answer

Answer :

Types of Oscillators generating frequencies in RF range: i) Hartley Oscillator ii) Colpitt’s Oscillator iii) Clapp Oscillator

by

Related questions

What is the frequency range of VHF electromagnetic waves?

Description : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

Last Answer : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

List the different types of frequency meters.

Description : List the different types of frequency meters.

Last Answer : Different types of frequency meters  1. Reed type [Mechanical type] 2. Ferro-dynamic type [Resonances type] 3. Weston type 4. Ratio-meter type 5. Saturable core type 6. Digital type

State two types of Electronic dimmer.

Description : State two types of Electronic dimmer.

Last Answer : Two types of electronic dimmers are: 1) S.C.R. operated dimmer 2) Triac operated dimmer 

Which type of corona generates much less ozone?

Description : Which type of corona generates much less ozone? A) A positive corona  B) A negative corona C) Both positive corona and negative corona generate same amount of ozone D) No ozone is generated by either type of corona

Last Answer : Which type of corona generates much less ozone? A) A positive corona  B) A negative corona C) Both positive corona and negative corona generate same amount of ozone D) No ozone is generated by either type of corona

Compare amplifier and oscillator.

Description : Compare amplifier and oscillator.

Last Answer : Figure shows a block diagram of an amplifier and an oscillator.   An amplifier is a device, which produces an output signal with similar waveform as that of the input. ... is supplied. An oscillator does not require any external signal to start or maintain energy conversion process.

crystal oscillator and its applications.

Description : crystal oscillator and its applications.

Last Answer : Need: Any circuit that generates an alternating voltage is called an oscillator. To generate ac Voltage, it takes energy from the dc source. 1. In some applications voltages of low frequency are required where ... generate clock in digital systems.  It is used as sweep circuits in TV and CRO.

Compare RC and LC oscillator.

Description : Compare RC and LC oscillator.

Last Answer :  RC and LC oscillator

Draw the circuit diagram of crystal oscillator and explain its working.

Description : Draw the circuit diagram of crystal oscillator and explain its working.

Last Answer : To excite a crystal for operation in the series-resonant mode it may be connected as a series element in a feedback path, the crystal impedance is the smallest and the amount of positive feedback is the largest. ... which is good.  The resonant frequency is given as  Fo = 1/( 2 π √LC ) 

Draw and explain Hartley Oscillator circuit diagram.

Description : Draw and explain Hartley Oscillator circuit diagram.

Last Answer : Function of each component: 1. An NPN transistor connected in a common emitter configuration works as the active device in amplifier stage and CE configuration provides 180°phase shift. 2. R1 and R2 ... circuit to the base-emitter circuit.  The frequency of oscillation is given as-  

Draw and explain RC phase shift Oscillator.

Description : Draw and explain RC phase shift Oscillator.

Last Answer : Circuit diagram of RC phase shift oscillator: WORKING: * Circuit consists of a single stage amplifier in common emitter configuration & RC phase shifting network. * R1, R2, RE provides biasing & CE ... . * The phase shift around the loop is 3600 only at one precise frequency.  

In an R-C phase shift oscillator, the minimum no. of R-C networks to be connected in cascade will be -

Description : In an R-C phase shift oscillator, the minimum no. of R-C networks to be connected in cascade will be -

Last Answer : In an R-C phase shift oscillator, the minimum no. of R-C networks to be connected in cascade will be 3

Is this oscillator adjustable with a screwdriver, and where is the link to prchase it?

Description : Is this oscillator adjustable with a screwdriver, and where is the link to prchase it?

Last Answer : answer:@XOIIO Probably a question you should direct to the company. The link below should help. http://www.vectron.com/contact/index.htm

Describe triggering of SCR using UJT relaxation oscillator.

Description : Describe triggering of SCR using UJT relaxation oscillator. 

Last Answer : I need it's operation

Which of the following is a negative-resistance microwave device for oscillator applications?

Description :  Which of the following is a negative-resistance microwave device for oscillator applications? A) IMPATT Diode B) Gunn Diode C) Snap diode D) Schottky Diode 

Last Answer :  Which of the following is a negative-resistance microwave device for oscillator applications? A) IMPATT Diode B) Gunn Diode C) Snap diode D) Schottky Diode 

Oscillator independent of phase shift is

Description : Oscillator independent of phase shift is  (1) Relaxation (2) Wein bridge (3) Clapp (4) All of these

Last Answer : Oscillator independent of phase shift is Relaxation 

A Hartley Oscillator is used for generating

Description : A Hartley Oscillator is used for generating (A) very low frequency Oscillation (B) radio-frequency Oscillation (C) microwave Oscillation (D) audio-frequency Oscillation

Last Answer : A Hartley Oscillator is used for generating radio-frequency Oscillation

State RADAR range equation and write factor influencing maximum range.

Description : State RADAR range equation and write factor influencing maximum range.

Last Answer : Free Space RADAR range Equation: 1.RADAR range equation relates the range of a RADAR to the chara. Of Tx, Rx, Antenna, target & environment. 2.Free space means RADAR and target are isolated in ... is no obstacle between RADAR antenna & the target. 4.There will be No absorption of EM waves.

State the advantages of instrument transformer in using for extension of range of meters.

Description : State the advantages of instrument transformer in using for extension of range of meters. 

Last Answer : Advantages of instrument transformer: 1. Extension of instrument range is possible. 2. Isolation of instruments from high voltage side. 3. Power loss is less as compared to shunts and multipliers. 4 ... measurement. 5. It is economical method of range extension. 6. Increases in safety of operator.

State the range for low and medium resistance.

Description : State the range for low and medium resistance.

Last Answer : Low resistances: less than 1 ohm.  Medium resistances: 1 ohm to 0.1 Mega ohm. 

How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.

Description : How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.

Last Answer : Extension of A.C. Ammeter Range: The range of a.c. ammeter can be extended by using CT, the arrangement is shown in figure. The CT is current transformer having less number of primary turns carrying high ... high magnitude of source voltage. In this way range of a.c. voltmeter can be extended.

How to Light the Pilot Light on a Gas Range

Description : How to Light the Pilot Light on a Gas Range

Last Answer : How to Light the Pilot Light on a Gas Range Gas ranges are easy to work with, you just turn the knob and they're ready to be used. Sometimes, though, your gas range's pilot light goes off, ... , though, it's best to contact a local gas company or the manufacturer, to help you solve the problem.

Define: i) Range ii) Span of instruments

Description : Define: i) Range ii) Span of instruments

Last Answer : i) Range: It is defined as the difference between Greatest and Smallest value of the data or reading of the instrument.  ii) Span: It is defined as the algebraic difference between the upper and lower range values

For arc welding current range is usually

Description : For arc welding current range is usually  (1) 10 to 15 A (2) 30 to 40 A (3) 50 to 100 A (4) 100 to 350 A

Last Answer : For arc welding current range is usually 100 to 350 A

The range of frequencies used in induction heating is :

Description : The range of frequencies used in induction heating is :  (A) 0-25 Hz  (C) less than 200 Hz  (B) 50 to 100 Hz  (D) more than 1 kHz

Last Answer : The range of frequencies used in induction heating is : more than 1 kHz

The braking retardation is usually in the range?

Last Answer : The braking retardation is usually in the range 10 to 15 km phps.

For diesel locomotives the range of horsepower is?

Last Answer : For diesel locomotives the range of horsepower is 1500 to 2500.

The wattage rating for a ceiling fan motor will be in the range?

Last Answer : The wattage rating for a ceiling fan motor will be in the range 50 to 150 W .

The range of efficiency for shaded pole motors is?

Last Answer : The range of efficiency for shaded pole motors is 5% to 35%.

The efficiency of a properly designed synchronous motor will usually fall in range?

Last Answer : The efficiency of a properly designed synchronous motor will usually fall in range 85 to 95%.

List at least two examples that show how static electricity can be generated.

Description : List at least two examples that show how static electricity can be generated.

Last Answer : Examples of how static electricity can be generated include combing your hair, walking across a carpeted room, or sliding two pieces of plastic across each other.

An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the

Description : An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the secondary displacement transducer in mm required to cover the input range is (A) 0 to 2.76 (B) 0 to 9.81 (C) 0 to 11.20 (D) 0 to 52.10

Last Answer : An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the secondary displacement transducer in mm required to cover the input range is 0 to 2.76

List different types of FET.

Description : List different types of FET.

Last Answer : Types of FETs:  1. Junction FET (JFET) i. N-Channel JFET ii. P-Channel JFET  2. MOSFET i. E-MOSFET ii. D-MOSFET 

List the types of filters.

Description : List the types of filters.

Last Answer : Types of filter are as follows: 1. Shunt Capacitor filter (C filter) 2. Series Inductor filter (L filter) 3. LC filter 4. π filter (CLC filter)

List types of chips produced in machining process.

Description : List types of chips produced in machining process.

Last Answer : The various types of chips produced in machining process are as follows: 1. Continuous chips: According to its name, continuous chips have a continuous segment. . 2. Discontinuous chips or segmental chips: ... chip is same as the continuous chips except a built edge is form at the face of tool.

List types of timers.

Description : List types of timers.

Last Answer : Types of Timers: Retentive Timers: 1. ON Delay 2. OFF Delay Non Retentive Timers: 1. ON Delay 2. OFF Delay

List the different types of tariff.

Description : List the different types of tariff.

Last Answer : Various types of Tariff:-  1) Flat-demand Tariff  2) Simple-demand Tariff or Uniform Tariff  3) Flat-rate Tariff  4) Step-rate Tariff  5) Block-rate Tariff  6) Two-part Tariff  7) Maximum demand Tariff ... c) KW and KVAR Tariff 10) TOD (Time of Day) Tariff 11) TOU ( Time of Usage) Tariff

State the purpose of lighting control. List the different types of dimmer.

Description : State the purpose of lighting control. List the different types of dimmer.

Last Answer : Purpose of Lighting Control:- 1. To turn ON or OFF the lamps 2. For dimming: The dimming control permits the adjustment of lighting over a range. 3. For changing the lighting levels ... operated dimmer 6) Triac operated Dimmer 7) PWM (Pulse width modulation) Controlled technique.

List different types of stepper motor. State one application of stepper motor.

Description : List different types of stepper motor. State one application of stepper motor.

Last Answer : Types of stepper motor : (i)Variable - reluctance motor (ii) Permanent- magnet motors (iii) Hybrid motors. Applications of stepper motor : In robotics, In CNC machines, In computers, printers, ... In Watches, In biomedical applications such as X-ray machines, CT scan, In Process control systems. 

List the types of Internal wiring in residential installations –

Description : List the types of Internal wiring in residential installations –

Last Answer : 1) Cleat wiring 2) Batten wiring 3) Wooden casing capping wiring 4) PVC conduit wiring 5) PVC casing capping wiring 6) Concealed wiring

Two waves of the same frequency have opposite phase when the phase angle between them is?

Description : Two waves of the same frequency have opposite phase when the phase angle between them is?

Last Answer : Two waves of the same frequency have opposite phase when the phase angle between them is 180°.

State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.

Description : State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  

Last Answer : Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v

Application one lamp controlled from two places

Description : Application one lamp controlled from two places

Last Answer : Application one lamp controlled from two places: 1. For Stair case wiring 2. Hospital Wiring ( For operating the lamp in room and nursing station) 3. Bedroom Lighting. 

State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.

Description : State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material. 

Last Answer :  (i) Application of PVC paper : 1. It is used in slot lining or motor winding insulation purpose 2. For Insulation of Transformer winding (ii) Application of Porcelain : 1. Mainly used for manufacturing ... on withstand temperature : * H' & C' Class of insulation i e. 180° and above 180°C 

Name two good conductors, two good insulators, and two semiconductors.

Description : Name two good conductors, two good insulators, and two semiconductors.

Last Answer : In general all metals are good conductors, with silver the best and copper second.

Merits of two wattmeter method

Description : Merits of two wattmeter method

Last Answer : Advantages of Two Wattmeter Method for 3-Phase Power Measurement: 1) It is used for balanced as well as unbalanced load. 2) For the star type load, it is not necessary to ... reactive volt-amperes for balanced loads also. 7) The circuit connections are independent of load connection.

If we conect a two bulbs in series And if we give double phase without neutral then bulb will glow or not??

Last Answer : Due to no potential difference between the ends of the circiut there is no existance of current 

Principal of digital frequency meter.

Description : Principal of digital frequency meter.

Last Answer : The basic block diagram of basic digital frequency meter (DFM) is shown in above figure. The signal whose frequency we have to be measured is first to be amplified through amplifier. The output of amplifier ... = Number of counts. t = Time interval between start and stop condition of the gate.

Define the following terms: 1) Virtual height 2) Actual height 3) Critical frequency. 4) Maximum usable frequency.

Description : Define the following terms: 1) Virtual height 2) Actual height 3) Critical frequency. 4) Maximum usable frequency.

Last Answer : 1) Virtual height:- The incident and refracted rays follow paths that are exactly the same as they have been if reflection had taken place from a surface located at a greater height, called ... angle of incidence is other than the normal is known as maximum unstable frequency. MUF= fc secθ 

Draw the diagram and explain the working of ferrodynamic type frequency meter.

Description : Draw the diagram and explain the working of ferrodynamic type frequency meter. 

Last Answer : Ferrodynamic type frequency meter: (Electrical resonance type frequency meter): It consists of a fixed coil. The supply whose frequency is to be measured is connected across it. This coil ... so selected that the moving coil takes up a convenient position when frequency is of normal value. 

Explain working of Weston type frequency meter.

Description : Explain working of Weston type frequency meter.

Last Answer : Weston Type Frequency Meter: There are two fixed coils marked as A and B. Each coil divided into two equal parts and are fixed such that their magnetic axis are perpendicular to each ... leading to deflections in either direction depending on the currents there in, due to changed impedances.