Meters with moving coil are normally used for measuring ____

Meters with moving coil are normally used for measuring ____
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1 Answer

Answer :

dc only
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Related questions

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

In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations

Description : In a moving coil ammeter, a ___ is connected in series with the coil to compensate for temperature variations

Last Answer : swamping resistors

Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.

Description : Current range extension in moving coil instruments can be achieved by placing a ___ in shunt with the instrument.

Last Answer : low resistance resistor

To increase the measuring capability of a moving-iron ac ammeter, a __ should be used.

Description : To increase the measuring capability of a moving-iron ac ammeter, a __ should be used.

Last Answer : different number of turns of coils

Permanent-magnet moving coil instrument can be used in

Description : Permanent-magnet moving coil instrument can be used in

Last Answer : dc work only

What is the reason why the scale of a permanent-magnet moving coil instrument is uniform?

Description : What is the reason why the scale of a permanent-magnet moving coil instrument is uniform?

Last Answer : because it is spring controlled

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

What is the typical full-scale deflection current of a moving coil instrument?

Description : What is the typical full-scale deflection current of a moving coil instrument?

Last Answer : 50mA

Draw a potentiometer temp. Measuring circuits and explain its?

Description : Draw a potentiometer temp. Measuring circuits and explain its?  

Last Answer : OPERATION : The input to the instrument is a measurement of some in the processes using a sensing element ( such as thermocouple ) or a device to produce direct voltage, which is the voltage (signal) ... to zero results ( null point ) the balancing ( servo motor is be longer driven )   

What are the primary elements for measuring pressure ?

Description : What are the primary elements for measuring pressure ?

Last Answer : The primary elements used for measuring pressure are : Bourdon tube. Diaphragm. Capsule. Bellows. Pressure Springs. The above are known as elastic deformation pressure elements. Type ... pressure. Pre.spring : Pressure springs of helical or spiral shape used for measuring high pressures.

What ammeter is mostly used in measuring high frequency currents?

Description : What ammeter is mostly used in measuring high frequency currents?

Last Answer : thermocouple

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 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

Resistance measuring instrument particularly used in determining the insulation resistance

Description : Resistance measuring instrument particularly used in determining the insulation resistance

Last Answer : Megger/Megaohmmeter

___ is used for measuring medium Q coils

Description : ___ is used for measuring medium Q coils

Last Answer : Maxwell Bridge

This refers to a four-arm ac bridge used for measuring inductance against a standard capacitance.

Description : This refers to a four-arm ac bridge used for measuring inductance against a standard capacitance.

Last Answer : Maxwell Bridge

What is that instrument used for measuring the strength and direction of magnetic fields?

Description : What is that instrument used for measuring the strength and direction of magnetic fields?

Last Answer : magnetometer

Majority of analog measuring instrument utilizes one of the following effects.

Description : Majority of analog measuring instrument utilizes one of the following effects.

Last Answer : magnetic effect

Decreasing the value of the shunt resistor of an ammeter, it current measuring capability

Description : Decreasing the value of the shunt resistor of an ammeter, it current measuring capability

Last Answer : increases

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

Refers to an ac bridge for measuring the inductance and Q of an inductor in terms of resistance, frequency and a standard capacitance.

Description : Refers to an ac bridge for measuring the inductance and Q of an inductor in terms of resistance, frequency and a standard capacitance.

Last Answer : hay bridge

A common technique for measuring power at high frequency is to ______

Description : A common technique for measuring power at high frequency is to ______

Last Answer : employ a sensing element that converts the RF power to a measureable dc or low-frequency signal

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

How can electric currents be induced with a coil and a magnet?

Description : How can electric currents be induced with a coil and a magnet?

Last Answer : by moving either the magnet or the coil

What is the basic unit for measuring current flow?

Description : What is the basic unit for measuring current flow?

Last Answer : ampere

An instrument used for measuring the amount of current flowing in a circuit.

Description : An instrument used for measuring the amount of current flowing in a circuit.

Last Answer : ammeter

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.

Which of the items below describes an absorption meter's usage?

Description : Which of the items below describes an absorption meter's usage?

Last Answer : check the output frequency of a transmitter

A procedure, or sequence of operations for determining whether a component or equipment is funcitoning or working normally.

Description : A procedure, or sequence of operations for determining whether a component or equipment is funcitoning or working normally.

Last Answer : Test

A ____ operates on the magnetic attraction-repulsion principles.

Description : A ____ operates on the magnetic attraction-repulsion principles.

Last Answer : milliameter

A ____ is a device that can test all pins of an IC at the same time.

Description : A ____ is a device that can test all pins of an IC at the same time.

Last Answer : logic clip

A ____ is a device that can test all pins of an IC at the same time.

Description : A ____ is a device that can test all pins of an IC at the same time.

Last Answer : logic clip

Moving-iron instrument has a/an scale

Description : Moving-iron instrument has a/an scale

Last Answer : squared

As the deflection of the moving system increases, the controlling torque in an indicating instrument.

Description : As the deflection of the moving system increases, the controlling torque in an indicating instrument.

Last Answer : increases

A moving system force in an analog instruments which causes the moving system to deflect from its zero position.

Description : A moving system force in an analog instruments which causes the moving system to deflect from its zero position.

Last Answer : deflecting force

A force in analog instrument which quickly brings the moving system to rest in its final position.

Description : A force in analog instrument which quickly brings the moving system to rest in its final position.

Last Answer : damping force

A moving system force in analog instruments which ensures that the deflection of the pointer for a given value of measured quantity always has the same value

Description : A moving system force in analog instruments which ensures that the deflection of the pointer for a given value of measured quantity always has the same value

Last Answer : controlling force

Which of the following forces does not act on the moving systems of analog instruments?

Description : Which of the following forces does not act on the moving systems of analog instruments?

Last Answer : an electrostatic force

____ or spectrophotometers can be used for measuring transparent foods. a. Thermometers c. Liquid b. Meters d. Colorimeters

Description : ____ or spectrophotometers can be used for measuring transparent foods. a. Thermometers c. Liquid b. Meters d. Colorimeters

Last Answer : d. Colorimeters

In moving coil meters, damping is provided by

Last Answer : In moving coil meters, damping is provided by eddy current disk.

What is a filter used for ?

Description : What is a filter used for ?

Last Answer : The half wave and full wave signals are pulsating D . C . voltages. The use of such voltages is limited to charging batteries, running D. C. motors, and a few other applications. What we really ... voltage from a battery. To get a constant voltage from this, we can use a capacitor input filter. 

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 transistor ? What are the different types ?

Description : What is transistor ? What are the different types ?

Last Answer : A transistor is a three lagged semi conductor device. Basically a transistor means (transfer - resister). Whether the transistor is pnp or npn it resembles two diodes (back to back). The one of the left ... transistor : Emitter - Base - Forward Bias. Collector - Base - Reverse Bias. 

What is CB, CE and CC configuration ?

Description : What is CB, CE and CC configuration ?

Last Answer : Buffer : A device or a circuit used to isolate two pt'ne circuits or stages. The emitter follows is a example of buffer. Alpha = IC / IE Beta = IC / IB

How will you test a transistor with a multimeter. ?

Description : How will you test a transistor with a multimeter. ?

Last Answer : 1. Emitter +ve of meter and Base -ve output = Low resistance 2. Emitter -ve of meter and base +ve output = High resistance. 3. Collector +ve and Base -ve output = Low. 4. Collector -ve and base +ve output = High. Emitter : Collector = High Resistance. PNP : Opposite Results. 

What is a thyristor ? What are its uses ?

Description : What is a thyristor ? What are its uses ?

Last Answer : A thyristor is a special kind of semi conductor device that uses internal feedback to produce latching action. Use : Used for controlling large amounts of load power in motors, heaters, lighting systems etc ... the latches like a open switch. This latch will always stay in open or close position.  

What does a transmitter output start from 3-15 psi or (0.2 - 1 Kg/Cm2) or 4 - 20 ma. etc. ?

Description : What does a transmitter output start from 3-15 psi or (0.2 - 1 Kg/Cm2) or 4 - 20 ma. etc. ? 

Last Answer : The transmitter output stance from what is known as "live zero". This system has specific advantages : 1. The systems automatically alarms when the signal system becomes inoperative. ... transmitter operating, but transmitting a zero measurement and a failure, in the signal system. 

What are Intrinsically safe system ?

Description : What are Intrinsically safe system ?

Last Answer : Intrinsic safety is a technique for designing electrical equipment for safe use in locations made hazardous by the presence of flammable gas or vapors in air. "Defn. :" Intrinsically safe circuit is ... , unfortunately, been adopted in all countries. However two sets of codes in common use are.  

What is feed back control ? What is feed forward control ? Discuss its application ?

Description : What is feed back control ? What is feed forward control ? Discuss its application ?

Last Answer : Feed back control: Feed back control involves the detection of the controlled variable and counteracting of charges its it's value relative to set point, by adjustment of a manipulated ... controller for a particular process application, two factors time and gain must be considered.