Compare CC and PC of wattmeter on the basis of:- (i) Connection (ii) Status (iii) Number of turns (iv) Gauge of wire.

Compare CC and PC of wattmeter on the basis of:- (i) Connection (ii) Status (iii) Number of turns (iv) Gauge of wire.
by

1 Answer

Answer :

Particulars
Current coil (CC)
Pressure coil (PC)
Connection
Connected in series with load
Connected in parallel with load
Status
It is fixed coil in wattmeter
It is moving coil in wattmeter.
No. of turns
It is having less number of turns
It is having more number of turns
Gauge of wire
Less
More
by

Related questions

Compare between CB , CE & CC transistor configuration.

Description : Compare between CB , CE & CC transistor configuration.

Last Answer : Parameter CB CE CC I/P impedance Low Or 50Ω Medium Or 600Ωto 4kΩ High Or 1 MΩ Current Gain Less than or equal to 1 High Highest Voltage Gain Medium Medium Less ... k Ω to 50 k Ω Low Or 50 Ω Phase shift between input and output 0° 360° 0° 

State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.

Description : State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.

Last Answer : Errors in wattmeter:  i) pc - inductance: Pressure coil inductance causes wattmeter to read more power than actual .  ii) pc-capacitance: The wattmeter reads less power.  iii) ... iv) Connection: In uncompensated wattmeter , the reading of wattmeter includes the powerloss in coils. 

State the principle of wattmeter.

Description : State the principle of wattmeter. 

Last Answer : Working Principle of Wattmeter: It consists of two stationary coils, called current coils and one moving coil, called voltage or potential coil. The current coils are connected such that they ... experiences a force and tends to move in the direction as per Fleming's left hand rule. 

Merits of two wattmeter method

Description : Merits of two wattmeter method

Last Answer : Advantages of Two Wattmeter Method for 3-Phase Power Measurement: 1) It is used for balanced as well as unbalanced load. 2) For the star type load, it is not necessary to ... reactive volt-amperes for balanced loads also. 7) The circuit connections are independent of load connection.

State any four errors that occur in dynamometer type wattmeter

Description : State any four errors that occur in dynamometer type wattmeter

Last Answer : Errors that occur in dynamometer type wattmeter: 1. Errors due to method of connection. 2. Error due to pressure coil inductance. 3. Error due to pressure coil Capacitance. 4. Error due to mutual ... Error due to eddy currents. 7. Temperature error. 8. Error due to vibration of moving system

With neat diagram explain constructional details of dynamometer type wattmeter.

Description : With neat diagram explain constructional details of dynamometer type wattmeter.

Last Answer : Working Principle of Wattmeter: It consists of two stationary coils, called current coils and one moving coil, called voltage or potential coil. The moving coil is mounted on the spindle, in the gap ... experiences a force and tends to move in the direction as per Fleming's left hand rule. 

State any two disadvantages of one wattmeter method of measurement of 3 phase power.

Description : State any two disadvantages of one wattmeter method of measurement of 3 phase power.

Last Answer : State any two disadvantages of one wattmeter method of measurement of 3 phase power. Disadvantages of one wattmeter method:- 1. Only used for balanced load 2. It can not be used for ... connection then neutral point must be available 4. Delta connection must be opened to connect current coil.

State various types of errors in wattmeter.

Description : State various types of errors in wattmeter.

Last Answer : Types of Error in wattmeter: 1. Errors due to method of connection. 2. Error due to pressure coil inductance. 3. Error due to pressure coil Capacitance. 4. Error due to mutual inductance effect. 5. ... . Error due to eddy currents. 7. Temperature error. 8. Error due to vibration of moving system.

Explain construction & working of electrodynamometer type wattmeter.

Description : Explain construction & working of electrodynamometer type wattmeter.

Last Answer : Electrodynamometer Type Wattmeter:  Construction: It essentially consists of the fixed and moving coil. The fixed coil is split into two equal parts which are placed close together and parallel to each other. ... hence these instruments can be used for measurement of A.C. & D.C. power.

List the different errors in wattmeter & explain compensation for it.

Description : List the different errors in wattmeter & explain compensation for it.

Last Answer : Errors in Wattmeter Compensation method Error due to connection method To overcome this error, wattmeters are provided with additional compensating winding which is connected in series with ... due to friction The weight of moving system be reduced to minimum possible.

List one advantage and one disadvantage of one wattmeter method.

Description : List one advantage and one disadvantage of one wattmeter method. 

Last Answer : Advantages:  1) Only one wattmeter is used.  2) Less number of connections.  3) Cost required is less.  Disadvantages:  1) Used only for 3- Φ balanced load and not for ... be accessible for connecting the Pressure coil.  3) Delta connection must be opened to connect current coil. 

Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R-L series circuit, draw phasor diagram.

Description : Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R-L series circuit, draw phasor diagram.

Last Answer : Practical Significance In the industry environment Electrical Engineering diploma graduate are expected to measure basic parameters like voltage, frequency, time period etc. for R-L series circuits. Therefore ... /varying L. 7. Draw the phasor diagram for each of reading for verification.

The torque produced in wattmeter is proportional to

Description : The torque produced in wattmeter is proportional to

Last Answer : A

The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is

Description : The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is (A) 11% (B) 9% (C) 1.1% (D) 3%

Last Answer : The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is 11%

In a 3-phase power measurement by two wattmeter method the reading of one of the wattmeter was zero...

Description : In a 3-phase power measurement by two wattmeter method the reading of one of the wattmeter was zero. The power factor of the load must be?

Last Answer : In a 3-phase power measurement by two wattmeter method the reading of one of the wattmeter was zero. The power factor of the load must be 0.5.

In a 3-phase power measurement by two wattmeter method, both the wattmeters had identical readings...

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.

In a low power factor wattmeter the compensating coil is connected?

Last Answer : In a low power factor wattmeter the compensating coil is connected in series with pressure coil.

In a low power factor wattmeter the pressure coil is connected?

Last Answer : In a low power factor wattmeter the pressure coil is connected to the load side of the current coil.

The pressure coil of a wattmeter should be connected on the supply side of the current coil when?

Last Answer : The pressure coil of a wattmeter should be connected on the supply side of the current coil when load impedance is high.

An induction wattmeter can be used for?

Last Answer : An induction wattmeter can be used for A.C. 

A dynamometer wattmeter can be used for?

Last Answer : A dynamometer wattmeter can be used for both D.C. and A.C.

The resistance in the circuit of the moving coil of a dynamometer wattmeter should be?

Last Answer : The resistance in the circuit of the moving coil of a dynamometer wattmeter should be high.

Compare star and Delta Connection.

Description : Compare star and Delta Connection.

Last Answer : Compare Star and Delta connected system:  Star connected system Delta connected system   In STAR connection, the starting or finishing ends (Similar ends) of three coils are connected together to form the ... VPH Line Current is √3 times of Phase Current. i.e. IL = √3 IPH

Compare the salient features of LED and CFL based on: i] Lamp Efficiency ii] Life span

Description :  Compare the salient features of LED and CFL based on: i] Lamp Efficiency ii] Life span 

Last Answer : Parameter LED CFL Lamp Efficiency  High (more than 70 lumen per watt) Comparatively less (50-60 lumen per watt) Life span (in working hours) 10000 3000

Compare casing capping wiring with concealed wiring.

Description : Compare casing capping wiring with concealed wiring.

Last Answer : Compare casing capping wiring with concealed wiring: 

Compare synchronous and asynchronous counter.

Description : Compare synchronous and asynchronous counter.

Last Answer : Asynchronous Counter Synchronous Counter In an Asynchronous Counter the output of one Flip Flop acts as the clock Input of the next Flip Flop. In a Synchronous Counter all the Flip Flop's are ... Also called as serial counter Also called as Parallel Counter

How does the resistance of a conductor compare to that of an insulator?

Description : How does the resistance of a conductor compare to that of an insulator?

Last Answer : The resistance of a conductor can be significantly lower than the resistance of an insulator, depending on each material's atomic properties.

Compare base load plant with peak load plant on any two points.

Description : Compare base load plant with peak load plant on any two points.

Last Answer : Points Base load plant Peak load plant Definition The power plant which supplies base load of load curve is known as base load plant  The power plant which supplies ... ,thermal,nuclear power station Small capacity storage hydro,pumped storage hydro,gas,diesel power station.

Classify the solar collectors and compare them.

Description : Classify the solar collectors and compare them. 

Last Answer : Classification of solar collectors :-  1. There are two main types of Flat Plate type collectors :- a) Flat plate collectors (FPC) b). Evacuated Tubular collector (ETC)  2. Concentrating ... directly from water Can be used to generate electricity with the help of steam turbine

Compare conventional energy sources with renewable energy sources on any four points.

Description : Compare conventional energy sources with renewable energy sources on any four points. 

Last Answer : Points Conventional Energy Sources Renewable Energy Sources Availability Limited Unlimited Cost of Fuel High depending on fuel.  Negligible Amount of Power generated On large scale due ... should be selected at source For example HPP, TPP, NPP SPP and WPP

Compare primary and secondary instruments.

Description : Compare primary and secondary instruments.

Last Answer : Primary instruments  Secondary instruments  Gives magnitude of quantity in terms of physical constants of instrument  Gives reading directly of the quantity measured.  Need no calibration  ... .  e.g. magnetic meter, induction meter, hotwire meter and electrostatic meter 

Compare PMMC & MI instrument.

Description : Compare PMMC & MI instrument.

Last Answer : MI Instrument  PMMC Instrument  It works on the principles of magnetism.  It works on the principle of DC motor Deflection torque is proportional to square of current  Deflection ... , Voltmeter and Watt meter  Can be used as voltmeter, Ammeter, Galvanometer, ohmmeter  

Compare JFET with MOSFET.

Description : Compare JFET with MOSFET.

Last Answer : Particulars JFET MOSFET 1) Type Voltage controlled device Voltage controlled device 2) Mode of operation Operates only in depletion mode Operates in depletion and enhancement ... 6) Gate connection Not isolated from substrate Isolated by SiO2 layer from substrate

Compare analog & digital multimeter.

Description : Compare analog & digital multimeter.

Last Answer : Analog multi-meter DMM Power supply is not required  Power supply is required  Less suffered from electric noise  More suffered from electric Noise Less isolation problems. More ... visual indication Visual indication is not that much better. Less cost More cost

Compare BJT with FET

Description : Compare BJT with FET

Last Answer : FET BJT It is unipolar device i.e. current in the device is carried either by electrons or holes It is bipolar device i.e. current in the device is carried either by ... from minority- carrier storage effects & therefore has lower switching speeds & cut-off frequencies. 

Compare intrinsic and extrinsic semiconductor

Description : Compare intrinsic and extrinsic semiconductor

Last Answer : Intrinsic semiconductor Extrinsic Semiconductor Pure form of semiconductor Impure form of semiconductor No. electrons and holes are equal  No. of electrons and holes are not equal Electrical ... e.g. Ge, Si semiconductor e.g. p-type or n-type semiconductor

Compare RC and LC filter.

Description : Compare RC and LC filter.

Last Answer : RC filters  LC filters The RC filter is only useful for small load currents. The LC filters are useful for heavy load currents. More power dissipated in RC filter. Less power ... RC is fine for filtering low power signals. LC is fine for filtering high power signals.

Compare statically induced emf with dynamically induced emf on any four points.

Description : Compare statically induced emf with dynamically induced emf on any four points.

Last Answer : Statically induced emf Dynamically induced emf Emf is induced without any relative motion between conductor and magnetic field. Emf is induced due to relative motion between conductor ... induced in transformer windings e.g emf induced in Generator, Alternator armature windings

Compare copper and aluminium.

Description : Compare copper and aluminium.

Last Answer : Copper Aluminium Resistivity is less Resistivity is more More weight Low weight Mechanically strong Mechanically weaker Specific Gravity high Specific Gravity Low ... Tensile strength is half of that of copper Used for winding Used for overhead lines

Compare electric and magnetic circuit.

Description : Compare electric and magnetic circuit.

Last Answer : Comparison between Magnetic and Electric Circuits

Compare and contrast Puritans and Protestants or Puritans and Pilgrims?

Description : Compare and contrast Puritans and Protestants or Puritans and Pilgrims?

Last Answer : What do you know already about the Protestants and the Puritans? What class is this for? Anything else you wanna include, maybe the entire prompt?

Does the human heart compare to the engine in your automobile?

Description : Does the human heart compare to the engine in your automobile?

Last Answer : Very simply…take care of your heart/body and it should serve you well for many years. But life is full of curve-balls and you never know when you will get rear ended! ;)

Compare reciprocating and rotary air compressor

Description : Compare reciprocating and rotary air compressor

Last Answer : Reciprocating compressor Rotary compressor  1. Compression of air takes place with help of piston and cylinder arrangement with reciprocating motion of piston. 1. Compression of air takes place ... High 12. More Starting torque required 12. Less Starting torque required

Compare between Hot rolling and Cold rolling.

Description : Compare between Hot rolling and Cold rolling.

Last Answer : Hot rolling Cold rolling  Metal is fed to the rolls after being heated above the recrytallization temperature. Metal is fed to the rolls when it is below the recrytallization temperature. ... Hot rolling is the father of the cold rolling. Cold rolling follows the hot rolling.

Compare the AC and DC Arc lamps.

Description : Compare the AC and DC Arc lamps.

Last Answer : AC Arc Lamp DC Arc Lamp Cross section area of electrode is same Cross section area of electrode is positive rod is twice that of negative rod Series inductor is used for stability ... supply is used for DC arc lamp Luminous efficiency is less Luminous efficiency is high

Compare FPGA and CPLD.

Description : Compare FPGA and CPLD.

Last Answer : Sr no: FPGA CPLD 1 It is field programmable gate array. It is complex programmable logic device. 2 Capacity is defined in terms of number of gates available. ... 8 FPGA are available in wide density range. CPLD contain fewer registers but have better performance.

Compare between Resistance welding and Arc welding on any six points.

Description : Compare between Resistance welding and Arc welding on any six points.

Last Answer : Sr.No Parameters Resistance Welding Arc Welding 1 Type of welding Plastic/Pressure/Non-fusion welding Fusion/Non pressure welding 2 Principle of heat developed Heat ... It is suitable for mass production It is suitable for heavy job, maintenance and repair work

Compare industrial electrical installation and residential electrical installation.

Description : Compare industrial electrical installation and residential electrical installation.

Last Answer : Basis Residential Electrical Installation Commercial Electrical Installation Load capacity Less High Input Supply Generally single phase Generally 3 phase Purpose Domestic ... supply voltage is equal to or more then 400V then there is need of caution notice

Compare various electrically erasable memory technique. Also explain flash memory.

Last Answer : EPROM EEPROM Flash EPROM Normalize cell size is 1. Normalize cell size is about 1 ... and floating gate, which is insulated by a dielectric material. NAND flash memory and NOR flash memory are the two types of flash memory.

Compare BJT, MOSFET and IGBT .

Description : Compare BJT, MOSFET and IGBT .

Last Answer : BJT MOSFET IGBT BJT is a current controlled device. MOSFET is a voltage controlled device. IGBT is a voltage controlled device. The input impedance of BJT is low. ... is minority carrier device. MOSFET is majority carrier device. IGBT is minority carrier device.