A type of meter that gives a precise reading of voltage, current or resistance where there is the generation of samples at the input and then feeds it to a digital read-out.

A type of meter that gives a precise reading of voltage, current or resistance where there is
the generation of samples at the input and then feeds it to a digital read-out.
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DMM
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Related questions

An ammeter has a full-scale deflection current of 100mA. If the same ammeter is used to measure a full-scale current of 1.0ampere, what is the value of the shunt resistor in ohms if the voltage across the meter is 9.0 volts?

Description : An ammeter has a full-scale deflection current of 100mA. If the same ammeter is used to measure a full-scale current of 1.0ampere, what is the value of the shunt resistor in ohms if the voltage across the meter is 9.0 volts?

Last Answer : 10 ohms

An ammeter with an internal resistance of 50 ohm(s) is used to measure a current thorugh a lod resistor Rl = 1 kohm(s). Determine the percentage error of the reading due to ammeter insertion.

Description : An ammeter with an internal resistance of 50 ohm(s) is used to measure a current thorugh a lod resistor Rl = 1 kohm(s). Determine the percentage error of the reading due to ammeter insertion.

Last Answer : 50/(50+1k)*100 = 4.76%

A device or instrument, which delivers signals of precise frequency and amplitude, usually over a wide range

Description : A device or instrument, which delivers signals of precise frequency and amplitude, usually over a wide range

Last Answer : signal generators

The only use of voltage senstive meter movement

Description : The only use of voltage senstive meter movement

Last Answer : very low voltage measurement

Calculate the series resistance needed to convert a D' Arsonval meter with FSD of 100uA and a meter resistance of 1kohm to a voltmeter with 10V FSD.

Description : Calculate the series resistance needed to convert a D' Arsonval meter with FSD of 100uA and a meter resistance of 1kohm to a voltmeter with 10V FSD.

Last Answer : Rs=10V/100uA - 1kohm = 99kohm

Insulation resistance is measured by which meter?

Description : Insulation resistance is measured by which meter?

Last Answer : megger

Calculate the shunt resistance needed to increase the FSD of an ammeter 5 times if the meter resistance is 1kohm

Description : Calculate the shunt resistance needed to increase the FSD of an ammeter 5 times if the meter resistance is 1kohm

Last Answer : 250ohms

It is the reciprocal of the full-scale current of a meter

Description : It is the reciprocal of the full-scale current of a meter

Last Answer : sensitivity

A meter has a full-scale current of 50uA, what is its sensitivity?

Description : A meter has a full-scale current of 50uA, what is its sensitivity?

Last Answer : Is=1/50uA=20kohm/V

A galvanometer with 20 ohms coil resistence has a full-scale deflection of 10 mA. A 0.02 ohm is placed across the meter to increase its rating capacity. What is the new full scale current for the meter?

Description : A galvanometer with 20 ohms coil resistence has a full-scale deflection of 10 mA. A 0.02 ohm is placed across the meter to increase its rating capacity. What is the new full scale current for the meter?

Last Answer : False.

Type of power-line frequency meter composed of vibrating iron reed placed in alternating magnetic field

Description : Type of power-line frequency meter composed of vibrating iron reed placed in alternating magnetic field

Last Answer : Vibrating Reed Type

Type of power-line frequency meter device utilizing a principle of balancing an indicator needle at center of a scale using magnetic fields opposing each other.

Description : Type of power-line frequency meter device utilizing a principle of balancing an indicator needle at center of a scale using magnetic fields opposing each other.

Last Answer : magnetic type

What is the most common type of meter movement?

Description : What is the most common type of meter movement?

Last Answer : D' Arsonval

What type of instrument is the watt-hour meter?

Description : What type of instrument is the watt-hour meter?

Last Answer : an integrating

An electrodynamic meter used t measure power

Description : An electrodynamic meter used t measure power

Last Answer : wattmeter

When the meter is unsufficiently damped, it is considered as ___

Description : When the meter is unsufficiently damped, it is considered as ___

Last Answer : underdamped

A meter when __ will become insensitive to small signals

Description : A meter when __ will become insensitive to small signals

Last Answer : overdamped

Errors due to frictions of the meter movement, incorrect spring tension, improper calibration or faulty instruments:

Description : Errors due to frictions of the meter movement, incorrect spring tension, improper calibration or faulty instruments:

Last Answer : instrument errors

What is that meter that depends for its operation on the forces attraction and repulsion

Description : What is that meter that depends for its operation on the forces attraction and repulsion

Last Answer : electrostatic instrument

A tunable RF instrument, which, by means of a sharp dip of an indicating meter, indicates resonance with an external circuit under test

Description : A tunable RF instrument, which, by means of a sharp dip of an indicating meter, indicates resonance with an external circuit under test

Last Answer : dip meter

In meter movement, how do oyu prevent the meter from oscillating and overswing?

Description : In meter movement, how do oyu prevent the meter from oscillating and overswing?

Last Answer : by damping

___ meter is the most sensitive

Description : ___ meter is the most sensitive

Last Answer : 1uA

Error in ammeter reading is due to

Description : Error in ammeter reading is due to

Last Answer : insertion

High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Last Answer : high resistance

High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Description : High sensitive DC voltmeter provides accurate reading when measuring ___ circuits.

Last Answer : high resistance

The deviation of a reading from the expected value

Description : The deviation of a reading from the expected value

Last Answer : error

If reading AC current with the illustrated device and unsure of the range as a precaution , the first step should be to _________. EL-0047 A. secure power and test for voltage B. disconnect the lead to be tested and connect the meter in series C. connect the meter to measure resistance and use Ohm's law to calculate current D. unable to safely measure current with the device

Description : If reading AC current with the illustrated device and unsure of the range as a precaution , the first step should be to _________. EL-0047 A. secure power and test for voltage B. disconnect the ... resistance and use Ohm's law to calculate current D. unable to safely measure current with the device

Last Answer : Answer: A

When the vertical input is 0V, the electron beam may be position at the __ of the screen.

Description : When the vertical input is 0V, the electron beam may be position at the __ of the screen.

Last Answer : vertical center

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

What provides a visual representation of any waveform applied to the input terminals?

Description : What provides a visual representation of any waveform applied to the input terminals?

Last Answer : cathode ray oscilloscope (CRO)

What should be the resolution of a digital voltmeter having three digit 0-3V?

Description : What should be the resolution of a digital voltmeter having three digit 0-3V?

Last Answer : 3mV

What is Zener Diode ? What is a voltage Regulator ?

Description : What is Zener Diode ? What is a voltage Regulator ?

Last Answer : The breakdown region of a p n diode can be made very sharp and almost vertical Diodes with almost vertical breakdown region are known as Zever Diodes. A Zener diodes operating in the breakdown ... VOLTAGE REGULATOR : The output remains constant despite changes in input voltage due to Zever effect.  

What is the constant voltage unit ?

Description : What is the constant voltage unit ?

Last Answer : The constant voltage circuit consists of a rectifier, CR, a filter capacitor C1, followed by two stages of zener regulation. Abridge configuration is provided to 1amp line voltage regulation ... , Thus variations. Resisters R2 and R3 form a bridge that any remoment line voltage effects. 

A sensing element that provides a dc voltage less than 10mV with typical power range of 0.1 to 100mW

Description : A sensing element that provides a dc voltage less than 10mV with typical power range of 0.1 to 100mW

Last Answer : thermal converters

What kind of voltage is applied to the horizontal deflection plates of the oscilloscope?

Description : What kind of voltage is applied to the horizontal deflection plates of the oscilloscope?

Last Answer : sweep voltage

An electronic measuring device that provide instantaneous visual indication of voltage excursions

Description : An electronic measuring device that provide instantaneous visual indication of voltage excursions

Last Answer : oscilloscope

A device or instrument able to generate noise with accurate voltage for test purposes

Description : A device or instrument able to generate noise with accurate voltage for test purposes

Last Answer : noise generator

An electrostatic voltmeter in which an assembly of figure-8-shaped metal plates rotates between the plates of a stationary assembly when a voltage is applied betweeen the assemblies.

Description : An electrostatic voltmeter in which an assembly of figure-8-shaped metal plates rotates between the plates of a stationary assembly when a voltage is applied betweeen the assemblies.

Last Answer : Kelvin voltmeter

The output voltage of a thermocouple

Description : The output voltage of a thermocouple

Last Answer : increases with temperature

Voltage measurement in a high impedance circuit requires a voltmeter with

Description : Voltage measurement in a high impedance circuit requires a voltmeter with

Last Answer : high input impedance

Which of the voltmeter is used for measuring high direct voltage (say 10kV)?

Description : Which of the voltmeter is used for measuring high direct voltage (say 10kV)?

Last Answer : electrostatic

What sensor provides a dc voltage approximately 1V at 10mW?

Description : What sensor provides a dc voltage approximately 1V at 10mW?

Last Answer : diode sensor

What is the typical full-scale voltage across a moving coil voltmeter?

Description : What is the typical full-scale voltage across a moving coil voltmeter?

Last Answer : 50mV

Which of the following bridges measures dc resistance?

Description : Which of the following bridges measures dc resistance?

Last Answer : Wheatstone bridge

A dc bridge widely used for the accurate measurements of resistance

Description : A dc bridge widely used for the accurate measurements of resistance

Last Answer : Wheatstone bridge

What sensor provides a change of resistance with typical power range of 1uW to 10mW and with maximum frequency greater than 100GHz

Description : What sensor provides a change of resistance with typical power range of 1uW to 10mW and with maximum frequency greater than 100GHz

Last Answer : thermistor sensor

A small swamping resistance is connected in series with operating coil of a moving coil ammter in order to compensate for the effects of ____

Description : A small swamping resistance is connected in series with operating coil of a moving coil ammter in order to compensate for the effects of ____

Last Answer : temperature variation

A four-arm bridge. All arms of which are predominantly resistive; used for measuring resistance

Description : A four-arm bridge. All arms of which are predominantly resistive; used for measuring resistance

Last Answer : Resistance Bridge and Wheatstone Bridge

An AC bridge that measures inductance in terms of resistance and capacitance.

Description : An AC bridge that measures inductance in terms of resistance and capacitance.

Last Answer : Owen's Bridge