Which oscillator uses a tapped inductor for feedback?

Which oscillator uses a tapped inductor for feedback?
by

1 Answer

Answer :

Hartley.
by

Related questions

Which oscillator uses tapped capacitors for feedback?

Description : Which oscillator uses tapped capacitors for feedback?

Last Answer : Colpitts.

An oscillator that uses a tapped coil to obtain the feedback is called:

Description : An oscillator that uses a tapped coil to obtain the feedback is called: a. A Hartley circuit b. A Pierce circuit c. A multivibrator d. A negative feedback circuit

Last Answer : An oscillator that uses a tapped coil to obtain the feedback is called: a. A Hartley circuit b. A Pierce circuit c. A multivibrator d. A negative feedback circuit 

Which oscillator uses a tickler coil for feedback?

Description : Which oscillator uses a tickler coil for feedback?

Last Answer : Armstrong.

Which components provide the regenerative feedback signal in the phase-shift oscillator?

Description : Which components provide the regenerative feedback signal in the phase-shift oscillator?

Last Answer : Resistor-capacitor networks.

What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?

Description : What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?

Last Answer : Pulse-Doppler.

When a transmitter uses a high-power oscillator to produce the output pulse, what switches the oscillator on and off?

Description : When a transmitter uses a high-power oscillator to produce the output pulse, what switches the oscillator on and off?

Last Answer : High-voltage pulse from the modulator.

Which of the following best describes a dip-meter? A. An SWR meter B. A counter C. A variable LC oscillator with metered feedback current D. A field strength meter

Description : Which of the following best describes a dip-meter? A. An SWR meter B. A counter C. A variable LC oscillator with metered feedback current D. A field strength meter

Last Answer : C. A variable LC oscillator with metered feedback current

Best described a dip-meter. A. A variable LC oscillator with metered feedback current B. An SWR meter C. A counter D. A field strength meter

Description : Best described a dip-meter. A. A variable LC oscillator with metered feedback current B. An SWR meter C. A counter D. A field strength meter

Last Answer : A. A variable LC oscillator with metered feedback current

The major function of transistor. Q2 is A) It provides voltage gain B) It provides the feedback signal C) It isolates the oscillator from loading effects D) It provides a phase shift.

Description : The major function of transistor. Q2 is A) It provides voltage gain B) It provides the feedback signal C) It isolates the oscillator from loading effects D) It provides a phase shift.

Last Answer : ) It provides a phase shift.

Which of the following is not true: A) An oscillator is a circuit that converts DC to AC B) An oscillator is an amplifier that supplies its own input signal C) All oscillators generate sine waves D) In phase feedback is called positive Feedback

Description : Which of the following is not true: A) An oscillator is a circuit that converts DC to AC B) An oscillator is an amplifier that supplies its own input signal C) All oscillators generate sine waves D) In phase feedback is called positive Feedback

Last Answer : C) All oscillators generate sine waves

State type of feedback used for oscillator circuit. Explain Barkhausen criteria.

Description : State type of feedback used for oscillator circuit. Explain Barkhausen criteria.

Last Answer : Concept of feedback: Feedback is process to fed back part of output to the input. Feed back concept is introduced in amplifier to improve the parameters of amplifier like voltage gain, current gain ... signal  d) Voltage shunt: Output signal is voltage signal, feedback signal is current signal. 

Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector

Description : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

Last Answer : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:

Description : Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:  (1) 3 (2) 1/3 (3) 1/29 (4) 3/29

Last Answer : Feedback factor at the frequency of oscillation of a Wien bridge oscillator is: 1/3.

How does a capacitor and an inductor react to (a) low frequency and (b) high frequency?

Description : How does a capacitor and an inductor react to (a) low frequency and (b) high frequency?

Last Answer : At low-frequency, a capacitor acts as an open and an inductor acts as a short. At high-frequency, a capacitor acts as a short and an inductor acts as an open.

What is the term for the number of times per second that tank circuit energy is either stored in the inductor or capacitor?

Description : What is the term for the number of times per second that tank circuit energy is either stored in the inductor or capacitor?

Last Answer : Natural frequency or resonant frequency (f r).

When the magnetic field of the inductor is completely collapsed, where is the energy of the tank circuit stored?

Description : When the magnetic field of the inductor is completely collapsed, where is the energy of the tank circuit stored?

Last Answer : . Capacitor.

If the inductor and capacitor values are increased, what happens to the resonant frequency?

Description : If the inductor and capacitor values are increased, what happens to the resonant frequency?

Last Answer : Decreases.

In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?

Description : In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?

Last Answer : Resultant reactance.

When you are testing an inductor with a Hay bridge, the characteristics of the inductor are compared with what type of device?

Description : When you are testing an inductor with a Hay bridge, the characteristics of the inductor are compared with what type of device?

Last Answer : A standard capacitor

State three types of power loss in an inductor.

Description : State three types of power loss in an inductor.

Last Answer : Copper loss; hysteresis loss; eddy-current loss.

What is the term for the opposition an inductor presents to ac?

Description : What is the term for the opposition an inductor presents to ac?

Last Answer : Inductive reactance.

What is the phase relationship between current and voltage in an inductor?

Description : What is the phase relationship between current and voltage in an inductor?

Last Answer : Current lags voltage by 90° (ELI).

What effect does an inductor have on a change in current?

Description : What effect does an inductor have on a change in current?

Last Answer : An inductor opposes a change in current.

Is the current flow through an inductor directly proportional or inversely proportional to its inductance value?

Description : Is the current flow through an inductor directly proportional or inversely proportional to its inductance value?

Last Answer : Directly proportional.

A Hay bridge measures inductance by comparing an inductor to what component?

Description : A Hay bridge measures inductance by comparing an inductor to what component?

Last Answer : A capacitor.

What component in a blocking oscillator controls pulse width?

Description : What component in a blocking oscillator controls pulse width?

Last Answer : Transformer.

What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Description : What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Last Answer : Coho lock pulse.

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Description : What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Last Answer : Frequency stability.

Name a disadvantage of sine-wave oscillator synchronizers.

Description : Name a disadvantage of sine-wave oscillator synchronizers.

Last Answer : It requires additional shaping circuits.

What basic circuits meet the requirements of an externally synchronized master oscillator?

Description : What basic circuits meet the requirements of an externally synchronized master oscillator?

Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Description : What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Last Answer : Frequency stability.

Name a disadvantage of sine-wave oscillator synchronizers.

Description : Name a disadvantage of sine-wave oscillator synchronizers.

Last Answer : . It requires additional shaping circuits.

What basic circuits meet the requirements of an externally synchronized master oscillator?

Description : What basic circuits meet the requirements of an externally synchronized master oscillator?

Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.

What type of multivibrator can be used as a radar master oscillator?

Description : What type of multivibrator can be used as a radar master oscillator?

Last Answer : Free-running.

What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?

Description : What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?

Last Answer : Negative

Why is a high-gain transistor used in the phase-shift oscillator?

Description : Why is a high-gain transistor used in the phase-shift oscillator?

Last Answer : Because of the losses encountered in the RC networks.

What is the identifying feature of a Colpitts oscillator?

Description : What is the identifying feature of a Colpitts oscillator?

Last Answer : Split capacitors.

What is the difference between the series-fed and the shunt-fed Hartley oscillator?

Description : What is the difference between the series-fed and the shunt-fed Hartley oscillator?

Last Answer : In the series-fed Hartley oscillator, dc flows through the tank circuit.

What is the main difference between the Armstrong oscillator and the Hartley oscillator?

Description : What is the main difference between the Armstrong oscillator and the Hartley oscillator?

Last Answer : Feedback coil. Armstrong uses a separate coil. Hartley uses a tapped coil.

In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Description : In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Last Answer : Beat frequency.

What characteristic of a gunn oscillator is inversely proportional to the transit time of the domain across the semiconductor?

Description : What characteristic of a gunn oscillator is inversely proportional to the transit time of the domain across the semiconductor?

Last Answer : The frequency.

Why is the tunnel diode loosely coupled to the cavity in a tunnel-diode oscillator?

Description : Why is the tunnel diode loosely coupled to the cavity in a tunnel-diode oscillator?

Last Answer : To increase the stability.

What determines the frequency of a tunnel-diode oscillator?

Description : What determines the frequency of a tunnel-diode oscillator?

Last Answer : The tuned circuit or cavity frequency.

In an fm transmitter, when does an oscillator generate only a steady frequency?

Description : In an fm transmitter, when does an oscillator generate only a steady frequency?

Last Answer : When no modulation is present.

What is the function of the oscillator in a cw transmitter?

Description : What is the function of the oscillator in a cw transmitter?

Last Answer : It generates an rf carrier at a given frequency within required limits.

Name two methods of oscillator keying.

Description : Name two methods of oscillator keying.

Last Answer : Plate keying and cathode keying.

An oscillator that uses crystal control should be A) Frequency stable B) useful only at low frequencies C) AVFO D) none of the above.

Description : An oscillator that uses crystal control should be A) Frequency stable B) useful only at low frequencies C) AVFO D) none of the above.

Last Answer : A) Frequency stable

The basic Hartley oscillator uses:

Description : The basic Hartley oscillator uses: (1) One inductor and two capacitors (2) A centre tapped inductor and a capacitor (3) Two capacitors (4) Tickler coil 

Last Answer : The basic Hartley oscillator uses: A centre tapped inductor and a capacitor

What type of feedback is usually caused by the base-to collector interelectrode capacitance?

Description : What type of feedback is usually caused by the base-to collector interelectrode capacitance?

Last Answer : Degenerative or negative

What type of feedback is usually caused by interelectrode capacitance?

Description : What type of feedback is usually caused by interelectrode capacitance?

Last Answer : Negative (degenerative) feedback