Electronic Voltmeters which use rectifiers employ negative feedback. This is done -

Electronic Voltmeters which use rectifiers employ negative feedback. This is done - 

a) To increase the overall gain b) To improve stability c) To overcome non -linearity of the diodes d) None of the above
by

1 Answer

Answer :

Electronic Voltmeters which use rectifiers employ negative feedback. This is done - To overcome non -linearity of the diodes

by

Related questions

In an electronic ohmmeter an op -amp is used as a: -

Description :  In an electronic ohmmeter an op -amp is used as a: -  a) sommer b) multiplier c) buffer amplifier d) integrator

Last Answer :  In an electronic ohmmeter an op -amp is used as a: -  buffer amplifier

On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components? A. A stepdown transformer is always required. B. Vessel vibrations affect the voltage source. C. The voltage must be rectified and made ripple free. D. Rectifiers cannot operate with voltage regulators.

Description : On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components? A. A stepdown transformer is ... voltage must be rectified and made ripple free. D. Rectifiers cannot operate with voltage regulators.

Last Answer : Answer: C

Which amongst the following has a negative coefficient of temperature for resistance?

Description : Which amongst the following has a negative coefficient of temperature for resistance?  a) Copper b) Lead c) Carbon d) Aluminium

Last Answer : Which amongst the following has a negative coefficient of temperature for resistance? Carbon 

Rectifiers are used to convert - (1) Direct current to Alternating current (2) Alternating current to Direct current (3) high voltage to low voltage (4) low voltage to high voltage

Description : Rectifiers are used to convert - (1) Direct current to Alternating current (2) Alternating current to Direct current (3) high voltage to low voltage (4) low voltage to high voltage

Last Answer : (2) Alternating current to Direct current Explanation: Converting DC power from one voltage to another is much more complicated. One method of DC-to-DC conversion first converts power to AC (using a ... inverter), then uses a transformer to change the voltage, and finally rectifies power back to DC.

Rectifiers are used to convert - (1) Direct current to Alternating current (2) Alternating current to Direct current (3) high voltage to low voltage (4) low voltage to high voltage

Description : Rectifiers are used to convert - (1) Direct current to Alternating current (2) Alternating current to Direct current (3) high voltage to low voltage (4) low voltage to high voltage

Last Answer : (2) Alternating current to Direct current Explanation: Converting DC power from one voltage to another is much more complicated. One method of DC-to-DC conversion first converts power to AC (using a ... inverter), then uses a transformer to change the voltage, and finally rectifies power back to DC.

RC time constant characteristics, as shown in the illustration, are important in _____________. EL-0086 A. bridge rectifiers for alternator excitation B. timing and pulse shaping circuits C. transistor power amplifier biasing D. motor controller overload protection

Description : RC time constant characteristics, as shown in the illustration, are important in _____________. EL-0086 A. bridge rectifiers for alternator excitation B. timing and pulse shaping circuits C. transistor power amplifier biasing D. motor controller overload protection

Last Answer : Answer: B

High vacuum diodes, gas-filled diodes, and germanium semiconductor diodes may all be used as _____________. A. potentiometers B. rectifiers C. power sources D. photocells

Description : High vacuum diodes, gas-filled diodes, and germanium semiconductor diodes may all be used as _____________. A. potentiometers B. rectifiers C. power sources D. photocells

Last Answer : Answer: B

What is the PIV of all type rectifiers?

Description : What is the PIV of all type rectifiers?

Last Answer : The PIV of rectifier: - Half wave rectifier=Vm, Center tape wave rectifier=2Vm Bridge full wave=Vm

ECE Board Exam March 1996 A device to be connected across the headset in telephone receivers to reduce the effects of acoustic shock. A. Ground B. Two rectifiers in parallel with opposite polarities C. Protector D. Fuse

Description : ECE Board Exam March 1996 A device to be connected across the headset in telephone receivers to reduce the effects of acoustic shock. A. Ground B. Two rectifiers in parallel with opposite polarities C. Protector D. Fuse

Last Answer : B. Two rectifiers in parallel with opposite polarities

What is rectifier? Write few types of rectifiers.

Description : What is rectifier? Write few types of rectifiers.

Last Answer : Rectifier is a device which converts AC supply into DC. Following are the types of rectifiers generally used. a. Copper oxide rectifier. b. Selenium rectifier. c. Electrolytic rectifier. d. Mercury arc rectifier. e. Tungar rectifier.

A half-wave voltage doubler is made up of how many half wave rectifiers?

Description : A half-wave voltage doubler is made up of how many half wave rectifiers?

Last Answer : Two.

State classification of Phase controlled rectifiers.

Description : State classification of Phase controlled rectifiers.

Last Answer : Classification of phase controlled rectifiers:

A freewheeling diode in phase -controlled rectifiers

Description : A freewheeling diode in phase -controlled rectifiers  (a) enables inverter operation (b) is responsible for additional reactive power (c) improves the line power factor (d) is responsible for additional harmonics

Last Answer : A freewheeling diode in phase -controlled rectifiers improves the line power factor

List the six safety precautions for the use of voltmeters.

Description : List the six safety precautions for the use of voltmeters.

Last Answer : a. Always connect a voltmeter in parallel. b. Always start with the highest range. c. Deenergize and discharge the circuit before connecting or disconnecting the voltmeter. d. ... to measure ac voltage. f. Observe the general safety precautions of electric and electronic devices.

Why ammeters have to be arranged in class and voltmeters in parallel circuit ?

Description : Why ammeters have to be arranged in class and voltmeters in parallel circuit ?

Last Answer : Ammeter must be added to the class because it measures the flow. When added in parallel, the flow will be divided into two parts. As a result, the exact value of the flow cannot be ... because adding voltage will change the voltage difference. But in parallel the voltage difference does not change.

`A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is applied between `x` and `y` the voltme

Description : `A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is applied between `x` and `y` the voltme

Last Answer : `A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is ... )` D. `V_(A)ne V_(B)ne V_(C )`

`A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is applied between `x` and `y` the voltme

Description : `A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is applied between `x` and `y` the voltme

Last Answer : `A, B` and `C` are voltmeters of resistances `R, 1.5R` and `3R` respectively. When some potential difference is ... )gtV_(3)` D. `V_(1)gtV_(2)=V_(3)`

What are voltmeters used for?

Description : What are voltmeters used for?

Last Answer : A voltmeter measures the voltage between two points in an electrical current. Voltmeters are commonly used to test the remaining life in a battery.

Most AC voltmeters are calibrated to indicate __________. A. peak-to-peak voltage B. root-mean-square voltage C. average voltage D. peak voltage only

Description : Most AC voltmeters are calibrated to indicate __________. A. peak-to-peak voltage B. root-mean-square voltage C. average voltage D. peak voltage only

Last Answer : Answer: B

AC voltmeters are generally calibrated to read the ________. A. instantaneous voltage B. average voltage C. RMS voltage D. peak voltage

Description : AC voltmeters are generally calibrated to read the ________. A. instantaneous voltage B. average voltage C. RMS voltage D. peak voltage

Last Answer : Answer: C

Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured? A. Peak value B. Root-mean-square value C. Average value D. Maximum value

Description : Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured? A. Peak value B. Root-mean-square value C. Average value D. Maximum value

Last Answer : Answer: B

What are the advantages of using two voltmeters in series?

Description : What are the advantages of using two voltmeters in series?

Last Answer : Increased input impedance, greater accuracy, and increased voltage range.

Most AC voltmeters have an rms scale which is valid only if the input signal being measured is a __ signal.

Description : Most AC voltmeters have an rms scale which is valid only if the input signal being measured is a __ signal.

Last Answer : sinusoidal

All voltmeters except one of the following are operated by the passage of current

Description : All voltmeters except one of the following are operated by the passage of current

Last Answer : electrostatic

Electrostatic voltmeters are particularly suitable for measuring high voltages because the construction...

Description : Electrostatic voltmeters are particularly suitable for measuring high voltages because the construction is simplified due to

Last Answer : Electrostatic voltmeters are particularly suitable for measuring high voltages because the construction is simplified due to Large electrostatic forces.

Two voltmeters have the same range 0-400V. The internal impedance ...

Description : Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

Last Answer : Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are 360V and 240V.

The moving iron voltmeters are likely:

Last Answer : The moving iron voltmeters are likely: To indicate lower value of ac than on dc.

When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when:

Description : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when:  a) Static strain are being measured b) Dynamic strain are being measured c) Both Static and dynamic strain are being measured d) None of the above

Last Answer : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when: Dynamic strain are being measured

Strong interference from one particular station can be eliminated by the use of A. noise limiters B. squelch circuits C. negative feedback D. wave traps in the antenna circuitry

Description : Strong interference from one particular station can be eliminated by the use of A. noise limiters B. squelch circuits C. negative feedback D. wave traps in the antenna circuitry

Last Answer : D. wave traps in the antenna circuitry

It's been two months and I still haven't received an item that I purchased on Etsy, what can I do besides giving negative feedback (I would really like my money back)

Description : It's been two months and I still haven't received an item that I purchased on Etsy, what can I do besides giving negative feedback (I would really like my money back)

Last Answer : answer:If you paid through paypal or a credit card, you can contact them about receiving a refund. From experience, paypal is a pain to deal with on this sort of thing, but your credit card company will ... Jelly enforcer in their area to go do some convincing if they give you any lip. Good luck.

How do I keep myself hopeful after reading multiple posts of negative feedback in a profession I'm going into?

Description : How do I keep myself hopeful after reading multiple posts of negative feedback in a profession I'm going into?

Last Answer : Talk to some actual workers in the field that you know and ask them. You should pick people who like their jobs.

How does negative feedback works like a thermostat?

Description : How does negative feedback works like a thermostat?

Last Answer : Need answer

How does the negative feedback mechanism work?

Description : How does the negative feedback mechanism work?

Last Answer : The negative feedback mechanism is important in many biological processes. The process can be shut off by the accumulation of products further along in the process.

increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Description : increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Last Answer : Ans: A

Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Last Answer : (1) increases bandwidth and decreases noise Explanation: Voltage gain, input impedance, output impedance, bandwidth etc. are few important characteristics of an amplifier. These parameters are more or ... be controlled. This can be conveniently achieved by employing a technique, called the feedback.

Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Last Answer : (1) increases bandwidth and decreases noise Explanation: Voltage gain, input impedance, output impedance, bandwidth etc. are few important characteristics of an amplifier. These parameters are more or ... be controlled. This can be conveniently achieved by employing a technique, called the feedback.

In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0022 A. common base B. reverse bias, negative feedback C. common emitter D. common collector

Description : In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0022 A. common base B. reverse bias, negative feedback C. common emitter D. common collector

Last Answer : Answer: C

What are the Characteristics of Negative Feedback?

Description : What are the Characteristics of Negative Feedback?

Last Answer : Negative Feedback in a Control System has following Characteristics Reduction in the gain at the expense of better stability of the system Rejection of disturbance signals in the system Low Sensitivity to parameter variations Accuracy in tracking the steady state value

Why Negative Feedback is preferred in the Control System?

Description : Why Negative Feedback is preferred in the Control System?

Last Answer : The role of Feedback in control system is to take the sampled output back to the input and compare output signal with input signal for error ( deviation from the desired result). ... and is less sensitive to the parameter variations. Hence in control systems negative feedback is considered.

When no signal is being received, the loudspeaker is not entirely silent as a result of the presence of A. parasitic oscillations in some of the receiver stages. B. negative feedback in each stage. C. spurious frequencies as a result of improper neutralization. D. internal receiver noise.

Description : When no signal is being received, the loudspeaker is not entirely silent as a result of the presence of A. parasitic oscillations in some of the receiver stages. B. negative feedback in each stage. C. spurious frequencies as a result of improper neutralization. D. internal receiver noise.

Last Answer : D. internal receiver noise.

The negative Feedback in amplifier

Description : The negative Feedback in amplifier

Last Answer : Increase in band width in and decrease in noise.

Benefits of negative feedback include A. less distortion B. increased bandwidth C. low output resistance D. all of above

Description : Benefits of negative feedback include A. less distortion B. increased bandwidth C. low output resistance D. all of above

Last Answer : all of above

.Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition because excess of β-galactosidase can switch off transcription (c) positive and inducible because it can be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Description : .Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition ... be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Last Answer : (d) negative and inducible because repressor protein prevents transcription.

Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

Description : Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

Last Answer : all above

Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition because excess of β-galactosidase can switch off transcription (c) positive and inducible because it can be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Description : Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition ... be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Last Answer : (d) negative and inducible because repressor protein prevents transcription.

The sulfa drugs work by _______ with PABA in making folic acid. a. Positive Feedback b. Negative Feedback c. Competitive Inhibition d. Allosteric Inhibition

Description : The sulfa drugs work by _______ with PABA in making folic acid. a. Positive Feedback b. Negative Feedback c. Competitive Inhibition d. Allosteric Inhibition

Last Answer : c. Competitive Inhibition

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

A negative reaction to a mediated communication is described as: (A) flak (B) fragmented feedback (C) passive response (D) non-conformity

Description : A negative reaction to a mediated communication is described as: (A) flak (B) fragmented feedback (C) passive response (D) non-conformity 

Last Answer : Answer: C  Explanation: Mediated communication refers to communication carried out by the use of information communication technology, and can be contrasted to face-to-face communication.