Recent questions tagged voltmeter

by anonymous asked Jan 1, 2021 89 views

Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R—C series circuit, draw phasor diagram.
Answer : Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R-C series circuit, draw phasor diagram. Practical Significance In the industry environment ... autotransformer position to zero and switch OFF the supply. 8. Draw the phasor diagram. ...

by anonymous asked Jan 1, 2021 107 views

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

by anonymous asked Sep 4, 2019 225 views

operation of half wave rectifier type AC Voltmeter.
Answer :  Half-wave Rectifier Voltmeter The d'Arsonval meter movement only responds to the average or dc value of the current through the moving coil. In order to measure alternating ... ) input voltage signal alternating signal needs to be rectified first by using diode rectifier to produce  ...

by anonymous asked Aug 21, 2019 109 views

advantages of DVM over electric voltmeter?
Answer : Advantages:  1) In case of digital volt meter the output signals is available in the form of discrete numerical. Where as in analog voltmeter, output is made available by using pointer ... using a suitable transducer the quantities such as temperature, pressure, etc. can also be measured. ...

by anonymous asked Sep 5, 2018 400 views

How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.
Answer : Extension of A.C. Ammeter Range: The range of a.c. ammeter can be extended by using CT, the arrangement is shown in figure. The CT is current transformer having less number of primary turns carrying high ... high magnitude of source voltage. In this way range of a.c. voltmeter can be extended. ...

by anonymous asked Aug 8, 2018 306 views

Draw a typical electric circuit including ammeter and voltmeter.
Answer : The figure shows typical electric circuit including ammeter and voltmeter. Ammeter is connected in series for measurement of current. Voltmeter is connected in parallel for measurement of voltage. Fuse is use ... are used. If the electric supply is DC the DC ammeter and DC voltmeter are used. ...

by anonymous asked Apr 30, 2018 482 views

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

by anonymous asked Apr 29, 2018 288 views

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
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 ...

by anonymous asked Apr 28, 2018 93 views

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

by anonymous asked Mar 21, 2018 155 views

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

by anonymous asked Sep 10, 2017 81 views

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

by anonymous asked Aug 6, 2017 148 views

what is voltmeter ?
Answer : Voltmeter is an instrument which is use for measuring voltage in volts....