What type of device is used to extend the current measuring capability of electrodynamic wattmeters?

1 Answer

Answer :

Current transformers.

Related questions

Description : For power measurements, what advantage does an electronic wattmeter have over an electrodynamic wattmeter?

Last Answer : Electronic wattmeters are capable of measuring high-fequency signals.

Description : What is the advantage of using in-line wattmeters over output power meters?

Last Answer : Most in-line wattmeters are capable of measuring both forward and reflected power.

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

Last Answer : increases

Description : An electrodynamic meter used t measure power

Last Answer : wattmeter

Description : How is a multimeter changed from a voltage measuring device to a resistance measuring device?

Last Answer : By changing the position of the function switch

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

Last Answer : different number of turns of coils

Description : What determines the frequency, bandwidth, and power handling capability of a waveguide probe?

Last Answer : Size and shape

Description : Error-rate damping is effective because the circuitry has the capability of ______________the amount of overshoot before it happens.

Last Answer : Anticipating

Description : Why is the range capability of 3D radar usually less than the range of 2D radar?

Last Answer : Higher operating frequency

Description : What capability allows the arithmetic/logic section to test various conditions encountered during processing and take action based on the result?

Last Answer : Logic.

Description : What capability does a transmitter transfer switchboard provide?

Last Answer : Transferring remote control functions and signals to transmitters.

Description : The power delivered to a 3-phase load can be measured by the use of two wattmeters only when the  (a) load is unbalanced (b) load is balanced (c) three phase load is connected to the source through three wires (d) three phase load is connected to the source through four wires

Last Answer : The power delivered to a 3-phase load can be measured by the use of two wattmeters only when the three phase load is connected to the source through three wires 

Description : Two wattmeters are used to measure the power in a 3 -phase balanced system. What is the power factor of the load when one wattmeter reads twice the other ?  (a) 0 (b) 0.5 (c) 0.866 (d) 1

Last Answer : Two wattmeters are used to measure the power in a 3 -phase balanced system. What is the power factor of the load when one wattmeter reads twice the other ?  0.866

Description : Two wattmeters connected to measure the power input to a balanced three-phase circuit indicate 4.5 KW and 3 KW respectively. Find the power factor of the circuit. A. 0.7 B. 0.8 C. 0.95 D. 0 

Last Answer : Two wattmeters connected to measure the power input to a balanced three-phase circuit indicate 4.5 KW and 3 KW respectively. Find the power factor of the circuit.  0.95

Description : The power in a 3phase circuit is measured with the help of 2 wattmeters. The reading of one of wattmeters is positive and that of the others is negative. The magnitude of readings is different. It can be concluded that the ... (A) Unity (B) 2 (lagging) (C) 5 (lagging) (D) Less than 0.5 (lagging)

Last Answer : A

Description : In a 3-phase power measurement by two wattmeter method, both the watt meters had identical readings. The power factor of the load was?

Last Answer : In a 3-phase power measurement by two wattmeter method, both the watt meters had identical readings. The power factor of the load was unity.

Last Answer : For handling greater currents induction wattmeters are used in conjunction with current transformers.

Description : In what manner are current-measuring instruments connected to a circuit?

Last Answer : In series.

Description : Is it possible to add Bluetooth capability to a device via USB?

Last Answer : answer:They make them. I have a six dollar USB adapter for my computer to use bluetooth. But, your car headset would need the drivers to see it. It might or might not have them. Your best bet here is to google the model of your stereo and bluetooth and see if anything pops up.

Description : What is the name of the device measuring small current flow ?

Last Answer : The name of the instrument used to measure small current flow is galvanometer

Description : What is the device called that will separate alternating current from direct current, or that will separate alternating current of one frequency from other alternating currents of different frequencies?

Last Answer : A filter.

Description : What is the name of the device that provides an increase in current, voltage, or power of a signal without appreciably altering the original signal?

Last Answer : Amplifier.

Description : What is a nonrotating device that produces alternating current?

Last Answer : Oscillator.

Description : When measuring receiver sensitivity, what quantities must you add to the dBm reading obtained on the signal generator or test set?

Last Answer : Attenuations of the directional coupler and the connecting cable.

Description : You determine receiver sensitivity by measuring the power level of what signal?

Last Answer : Minimum discernible signal (mds).

Description : When you are measuring a component using a bridge, what is the most common cause of inaccurate measurements?

Last Answer : The capacitive and inductive characteristics of the test leads.

Description : When measuring harmonic distortion, you set the signal generator to input a 15-kHz test signal. To what frequency should you set the wave analyzer?

Last Answer : 45 kHz.

Description : While measuring frequency response, as the signal generator approaches the lowest and highest frequency the recorder can effectively record, the VTVM reading drops to less than - 3 dB. What does this indicate?

Last Answer : The upper and lower limits of the frequency response specification for that tape recorder.

Description : What area of an ohmmeter scale should be used when measuring circuits?

Last Answer : The middle of the scale.

Description : What value does a meter movement react to (actually measure) when measuring ac?

Last Answer : Average value.

Description : What instrument is used for measuring the insulation resistance of cables?

Last Answer : Megohmmeter (megger).

Description : In what manner are voltage-measuring instruments connected to the circuit to be measured?

Last Answer : In parallel.

Description : Electric cables are formed of stranded wire to ____________. A. increase the current carrying capability for a given size wire B. increase their flexibility C. decrease the weight for a given size wire D. assure good conductivity at junction points

Last Answer : Answer: B

Description : What is the name of the device for measuring density ?

Last Answer : The name of the instrument for measuring density is hydrometer.

Description : What is the name of the blood pressure measuring device in human body ?

Last Answer : : Sphygmomanometer is the name of the blood pressure measuring device in human body

Last Answer : : Barometer is an instrument for measuring air pressure.

Last Answer : The name of the instrument for measuring the density of milk is lactometer

Last Answer : Cardiograph is a device that measures the heart rate.

Description : How should the hand be when measuring pressure? When I put it to my head or toes, it always shows differently. I don't have a guide anymore.

Last Answer : For example here - http://www.sportstatus.cz/postava---navody/jak-merit-krevni-tlak - is a general guide on how to measure your pressure. It is important to proceed in the same way each time so that the measurement conditions do not change. ;-)

Description : What is the name of the device used for measuring ground movement?

Last Answer : Need answer

Description : What is a weather balloon device for measuring air pressure temperature and relative humidity is called?

Last Answer : A+ Radiosonde

Description : The most common water flow measuring device which measures water flow in open conduit is

Last Answer : Ans.Parshall/Venturi flume

Description : A device for measuring relative humidity is called: a. A dew point analyzer b. An R. H. gauge c. An aspirating gauge d. A psychrometer e. A chronometer

Last Answer : Answer: D

Description : A thermostat is a device for (a) switching off an electrical appliance (b) measuring temperature (c) regulating temperature (d) producing heat

Last Answer : Ans:(c)

Description : Ondometer is a - (1) Measuring instrument for distance covered by motor wheels (2) Measuring instrument for frequency of electromagnetic waves (3) Device for measuring sound intensity (4) Measuring instrument for electric power

Last Answer : (2) Measuring instrument for frequency of electromagnetic waves

Description : The device used for measuring the wavelength of X-rays is – (1) G.M. Counter (2) Cyclotron (3) Bragg Spectrometer (4) Mass Spectrometer

Last Answer : (3) Bragg Spectrometer Explanation: Bragg Spectrometer is an instrument used to analyze crystal structure by using X-rays. In it, a beam of collimated X-rays strikes the crystal, and a detector measures the angles and intensities of the reflected beam.

Description : What device measures rf power by measuring the heat the rf power generates? A. Calorimeter B. Goniometer C. Spectrum meter D. Oscilloscope

Last Answer : A. Calorimeter

Description : The device used for measuring the wavelength of X–rays is:

Last Answer : Bragg Spectrometer

Description : The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a (A) Weir (B) Pitot tube (C) Kennison nozzle (D) V-notch

Last Answer : (B) Pitot tube

Description : What pressure measuring device consists of a coiled hollow tube that tends to straighten out when the tube is subjected to an internal pressure?  A. Aneroid  B. Manometer  C. Bourdon pressure gage  D. Barometer

Last Answer : Bourdon pressure gage