1 Answer

Answer :

The principle on which vector voltmeter is based is that it measures the amplitude of a single at two points and at the same time measures their phase difference

Related questions

Description : Poynting vector wattmeter is based on   (A) Seebeck effect (B) Ferranti effect (C) Induction effect (D) Hall effect

Last Answer : Poynting vector wattmeter is based on Induction effect 

Description : The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.

Last Answer : The operation of a ramp type Digital Voltmeter is based on the principle of Voltage-to-time conversion.

Description : A digital voltmeter has a read-out range from 0 to 9999 counts. When full scale reading is 9.999 V, the resolution of the instrument will be (a) 100 mV (b) 99 mV (c) 9 mV (d) 1 mV 

Last Answer : d) 1mV 9.999v÷9999v

Description :  In the case of an instrument reading of 8.3 V with a 0 to 150 voltmeter having a guaranteed accuracy of 1% full scale reading, the percentage limiting error is   (A) 1.810% (B) 0.181% (C)12.45% (D) 0.0018%

Last Answer :  In the case of an instrument reading of 8.3 V with a 0 to 150 voltmeter having a guaranteed accuracy of 1% full scale reading, the percentage limiting error is 12.45%

Description : In order to increase the range of a voltmeter

Last Answer : In order to increase the range of a voltmeter a high resistance is connected in series

Description : An accurate voltmeter must have an internal impedance of (A) very low value. (B) very high value (C) medium value. (D) zero Value

Last Answer : An accurate voltmeter must have an internal impedance of very high value

Description : Range of a voltmeter can be extended by connecting a

Last Answer : Range of a voltmeter can be extended by connecting a Multiplier in series

Description : An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to  (1) 1.414 times dc sensitivity (2) dc sensitivity (3) 0.9 times dc sensitivity (4) 0.707 times dc sensitivity

Last Answer : An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to 0.9 times dc sensitivity

Description : An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be  (1) unaffected (2) decreased (3) increased (4) either decreased or increased depending on the direction of the DC field

Last Answer : An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be either decreased or increased depending on the direction of the DC field

Last Answer : Ryall crest voltmeter is used for measurement of High AC voltage.

Description : A 0 to 300V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by the instrument is 83V. The percentage limiting error is

Last Answer : A 0 to 300V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by the instrument is 83V. The percentage limiting error is 4.85%.

Last Answer :  If a DC voltmeter is made from an ammeter having a fed of 100μA then its sensitivity (in KΩ/V) will be 10.

Last Answer : If a voltmeter is connected, like an ammeter in series to the load: Almost no current will flow in the circuit

Description : A 150 V moving iron voltmeter of accuracy class 1.0 reads 75 V when used in a circuit under a standard conditions. The maximum possible percentage error in the reading is:

Last Answer : A 150 V moving iron voltmeter of accuracy class 1.0 reads 75 V when used in a circuit under a standard conditions. The maximum possible percentage error in the reading is:  2.0.

Last Answer : The multiplier and the meter coil in a voltmeter are in series.

Last Answer : Voltmeter is used to measure voltage in a circuit.Ohmmeter is used to measure the resistance of a component in a circuit.

Last Answer : The principle of operation of Q-meter is based on Series resonance.

Description : The statement the resultant of the external forces applied to a body (rigid or non-rigid) composed of a system of particles is equivalent to the vector summation of the effective forces acting on all ... motion b.Principle of dynamics c.D' Alembert's principle d.Nowton's law e.Mohr's principle

Last Answer : c. D' Alembert's principle

Description : Integrating principle in the digital measurement is the conversion of   (a) Voltage to time (b) Voltage to frequency (c) Voltage to current (d) Current to voltage

Last Answer : Integrating principle in the digital measurement is the conversion of Voltage to frequency

Last Answer : Electrostatic instrument uses the principle of the variation of Capacitance with the voltage.

Last Answer : Wattmeter cannot be designed on the principle of moving iron instrument.

Description : What's the name of the Mac vector-based paint app with an infinite canvas?

Last Answer : Is the “S” for the name of the paint app (e.g. Scribbles), or the Twitter client (e.g. Seismic)?

Description : _______ is an implementation of multicast distance vector routing. It is asource-based routing protocol, based on RIP. A) MOSPF B) DVMRP C) CBT D) none of the above

Last Answer : DVMRP

Description : The Multicast Open Shortest Path First (MOSPF)protocol is an extension of the OSPF protocol that uses multicast routing to create source-based trees. The protocol is basedon _______ routing. A) distancevector B) link state C) path vector D) none of the above

Last Answer : link state

Description : The Routing Information Protocol (RIP) is an intradomain routing based on _________ routing. A) distancevector B) link state C) path vector D) none of the above

Last Answer : distancevector

Description : Compare Bitmap Graphics and Vector based graphics.

Last Answer : Compare Bitmap Graphics and Vector based graphics.  

Last Answer :  To measure the flux, devices used are based on Hall effect.

Description : What is meant by Voltmeter & Ammeter ?

Last Answer : Voltmeter measures the voltage of any load or any line and the voltmeter has to be connected parallel to the load. The ammeter measures the current flowing through a load or the current of an electrical line. The ammeter is connected in series with the load.

Description : What is a voltmeter ?

Last Answer : : A device that can be used to directly measure the voltage difference between two points on any part of a circuit is called a voltmeter.

Description : What should be the resistance of a standard voltmeter ?

Last Answer : : The resistance of a standard voltmeter should be infinite.

Description : What are the physical quantities measured with voltmeter and ammeter ?

Last Answer : : The voltage difference between two points of a circuit is measured with a voltmeter. And the flow rate of an electric circuit is measured with an ammeter.

Description : How to connect voltmeter and ammeter to circuit ?

Last Answer : : A voltmeter is connected in parallel with the two points of voltage circuit to measure the voltage difference. Again, to measure the flow rate of an electric circuit, ammeters are added to the electromagnetic circuit.

Description : What if I connect to voltmeter series ?

Last Answer : If connected to the volt meter series, no text can be found on the meter. Because the internal resistance of the voltmeter is infinite.

Description : What is a voltmeter ?

Last Answer : The meter by which voltage is measured is called a voltmeter

Description : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential difference is measured by a voltmeter of resistance `1000 Omeg

Last Answer : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential ... percentage error in the reading of emf shown by voltmeter.

Description : In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when connected across `400 Omega` resistance. Calculate what the same voltmeter read

Last Answer : In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when connected across `400 ... when it is connected across `300 Omega` resistance.

Description : A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range

Last Answer : A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range A. `1 A` B. `1 mA` C. `100 mA` D. `10 mA`

Description : A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) of necessary shunt will be

Last Answer : A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) ... 001` B. `0.01` C. 1 D. `0.05`

Description : A galvanometer has a coil of resistance `100 Omega` and gives a full-scale deflection for `30 mA` current. If it is to work as a voltmeter of `30 V` r

Last Answer : A galvanometer has a coil of resistance `100 Omega` and gives a full-scale deflection for `30 mA` current. ... Omega` C. `1000 Omega` D. `1800 Omega`

Description : Potentiometer measures the potential difference more accurately than a voltmeter, because

Last Answer : Potentiometer measures the potential difference more accurately than a voltmeter, because A. it does not ... resistance D. it has a low resistance

Description : A galvanometer having internal resistance `10 Omega` required `0.01` A for a full scale deflection. To convert this galvanometer to a voltmeter of ful

Last Answer : A galvanometer having internal resistance `10 Omega` required `0.01` A for a full scale deflection. ... Omega` in series D. `12010 Omega` in parallel

Description : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential drop across B and C measured by vol

Last Answer : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential ... 29 B. 27 V C. 31 V D. 30 V

Description : The range of voltmeter is 10 V and its internal resistance is `50 Omega`. To convert it to voltmeter of range 15 V, how much resistance is to be added

Last Answer : The range of voltmeter is 10 V and its internal resistance is `50 Omega`. To convert it to ... in parallel D. Add `125 Omega` resistor in series

Description : Assertion : If by mistake, a voltmeter is connected in series, then circuit will burn. Reason : Current will drastically decrease in the circuit.

Last Answer : Assertion : If by mistake, a voltmeter is connected in series, then circuit will burn. Reason : ... D. If Assertion is false but Reason is true.

Description : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ammeter and voltmeter are

Last Answer : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ... V C. 3 A, 4 V D. 4 A, 4 V

Description : In the circuit shown here, the readings of the ammeter and voltmeter are

Last Answer : In the circuit shown here, the readings of the ammeter and voltmeter are A. 6 A, 60 V B. `0.6` A, 6 V C. 6 A, 6 V D. 6/11 A, 6/11 V

Description : In the given circuit, the voltmeter records 5 V. The resistance of the voltmeter in `Omega` is

Last Answer : In the given circuit, the voltmeter records 5 V. The resistance of the voltmeter in `Omega` is A. 200 B. 100 C. 10 D. 50

Description : A `100 V` voltmeter of internal resistance `20 k Omega` in series with a high resistance `R` is connected to a `110 V` line. The voltmeter reads `5 V`

Last Answer : A `100 V` voltmeter of internal resistance `20 k Omega` in series with a high resistance `R` is ... B. `315kOmega` C. `420kOmega` D. `440kOmega`

Description : A voltmeter of resistance `998 Omega` is connected across a cell of emf 2 V and internal resistance `2 Omega`. Find the p.d. across the voltmeter, tha

Last Answer : A voltmeter of resistance `998 Omega` is connected across a cell of emf 2 V and internal resistance `2 Omega`. Find the ... B. `3.5 V` C. 5 V D. 6 V

Description : An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible internal resistance. Their readings are `A` and `V`

Last Answer : An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible ... increase D. A will increase and V will decrease