If PMMC meter have internal resistance of 10Ω and full scale range of 1mA. Assume we wish to increase the meter range to 1A

Q: A 212 range voltmeter is having an accuracy of +- 0.68% . It show the following readings  M1…

A: Given, Full Scale deflection = 212 V And, Accuracy = ±0.68% of full scale deflection. The measured…

Q: When measuring a short to ground with an ohmmeter the display will rea O Approximately 0 ohms…

A:

Q: Identify three Energy measuring devices and explain the following to them 1. Technical…

A: consider the given question;

Q: What is the total internal resistance of an ohmmeter with a 1mA meter movement and having a 5VDC…

A: Given data: I=1 mAVB=5 V

Q: Display the DC measurement circuit if the current value is 7.5 mA. The measuring range of the…

A: Given a DC measurement circuit with, Measuring current, I=7.5 mA Meter current, Im=25 μA Meter…

Q: Mega ohmmeter is essentially same as series ohmmeter. Select one: True False

A: Mega ohm meter know as megger which bis used to measure very high resistance unlike a ohm meter

Q: An ammeter has been designed by indirect method with current ranges 1A, and 5A, if PMMC meter have…

A:

Q: Determine how long a battery will last whose rating is 100AH; 24Volts and will run a 300W electronic…

A: Total load power = sum of the two load powers . Total current   taken by load = total load power /…

Q: current "i" 本D, 2H 202 40Vpc A В 李D. E D.

A: The given circuit is,

Q: Calculate the equivalent resistance between A and B Sohm 10ohm

A: For series connection, Req=R1+R2 For parallel connection, Req=R1R2R1+R2

Q: While measuring resistance by the voltmeter – ammeter method, the maximum possible percentage error…

A: Maximum percentage error in the resistance?  If percentage error in voltmeter =1.8% Percentage error…

Q: What is the purpose of the ohms adjust rheostat that is part of an ohmmeter? A. To compensate for…

A: purpose of the ohms adjust rheostat that is part of an ohmmeter?

Q: Sketch a diagram showing the ohmmeter face for a reading of 1.2k ohms. Indicate the setting of the…

A: Ohmmeter:- An ohmmeter is a piece of electrical equipment used to measure electrical resistance.…

Q: Can you explain part (b), how did you write the solution

A: It was answered using fourier transform properties.  Property used here is frequency shifting.

Q: 1. Determine the full-scale voltage indicated by a 500-μA meter move- ment with an internal…

A: In this question we need to find full scale voltage indicated by the given meter

Q: A 0 to 300 V voltmeter has an error of ±2% of fsd. What is the range of reading if true voltage is…

A: Given; Range of voltmeter 0-300 V Error is ±2% of FSD True voltage is 30 V

Q: a 15-ampere hour ni-cad battery can provide 1 5a of current for ____ hours

A: Given,  A 15-ampere hour ni-cad battery can provide 15A of current for ____ hours

Q: Find the voltage drop on the 2kohm resistor through which I0 current passes.

A:

Q: An energy meter having meter constant of 1200 revolutions/kWh makes 20 revolutions in 30 seconds for…

A: Given values are - Meter constant=1200revkWhNumber of revolution=20Time=30sec

Q: How would you construct a battery pack that could supply 6V and 7A using D or AA alkaline batteries?

A: It is asked to construct a battery pack that could supply 6 V and 7 A using D or AA alkaline…

Q: Write a short note on a) Voltmeter b) Digital Multimeter

A: A Voltmeter is a measuring instrument that is used to measure the voltage across the specific…

Q: The filament of a 240V metal filament lamp is to be constructed from a wire having a diameter of…

A:

Q: 2 What is the output of this system? x[n] lot

A: According to question: x[n-1] is calculated as ∵xn= 2↑  2  1 ⇒xn-1= 0↑  2  2  1  Where upward arrow…

Q: 3. A Hydrometer is specified as having a range of 0-650 Kg/m and an accuracy of • 0.5 Kg/m. If true…

A: Given, that the range of the Hydrometer is 0 - 650 kg/m^3 ->Guaranteed Accuracy is 0.5 kg/m^3, it…

Q: There are 5005 electrons in an assembly. What will be total charge in coloumb?

A: Electrons are negatively charged particles and the charge of a single electron can be expressed as…

Q: What does SI stand for in the National Electrical Code? Select one: a. single length b. metric c.…

A: The SI stands for international standards used for units in the national electrical codes. As there…

Q: Nichrome ribbon resistor elements each has a resistance of 1 ohm. The element is made from sheet of…

A:

Q: 8.6 A voltage of 2.5 V is applied to a sample of silicon whose cross-sectional area is 0.1 µm × 1…

A:

Q: The power semiconductor device requires protection against sudden rise in voltage and current, so…

A: (i)  The main causes for the high rate of change of voltage across the device are as follows:…

Q: Question 2 Determine number of electrons transferred when a current of 5mA flows a fixed point for…

A: Given data, Current, I=5 mA Time t=10 minutes

Q: What's the accuracy of the 6½ digit DMM if it measured 1.6V (DC) on the 100V range and 10V range…

A: Sensitivity=resolution*range

Q: 4. Sketch a diagram showing the ohmmeter face for a reading of 1.2 k2. Indicate the setting of the…

A:

Q: To test continuity of a wire using an analog multi-meter, what function must be used? O a. ac…

A: To test the continuity of wire connect one end of the wire to one terminal of ohm meter and other…

Q: Write a short note on: a. Voltmeter b. Digital Multimeter

A: The explanation is as follows.

Q: By using a mass scale, five readings were taken to measure a mass of 50 Kg as follows: (50.8, 50.9,…

A: Given, The true value of mass = 50 kg  Five readings are 50.8 kg, 50.9 kg, 50.7 kg, 50.6 kg and 51…

Q: Design a multirange d.c. milliammeter with a basic meter having a resistance 75 ohm and full scale…

A:

Q: otal charge is 750 microcoulomb . Determine values of V1 , V , and C2 .

A: When the same charge is present across all capacitors, they are in series. When same potential…

Q: Write your answer here: Write any 4 blocks of Digital Multimeter

A: The four most important blocks of a digital multimeter are: (1) Digital display: The display will…

Q: Use the battery discharge curves below. If the battery is discharged at a constant rate of 240 mA…

A: Amongst the several curves that are listed on the graph, the curve to be considered is that with…

Q: By using a mass scale, five readings were taken to measure a mass of 50 Kg as follows: (50.8, 50.9,…

A: Precision = true positive/(true positive+false positive )

Q: Differentiate by take a single quantity of your interest. Measured it by different methods…

A: Here i took the quantity of the electrical current as my interest. measurement of electrical current…

Q: A PMMC instrument has internal resistance of 0.8 kΩ and gives full scale deflection for 33 mA. The…

A: Required Resistance Rse=Rm(VVm-1)  Given:  Rm=0.8 K ohm Im= 33 mA  V=75 V

Q: A digital voltmeter with a reading range of 0 to 9999 digits. Calculate the minimum reading of the…

A:

Q: 4. If we use a digital multimeter to measure the current In the 500 ohm resistor, how much error…

A: Electrical devices are used for measuring electrical parameters. Current, voltage and power are…

Q: Design an ammeter to measure 100mA using a 50μA PMMC meter movement with internal resistance 3k Ω.…

A: Consider the current to be measured is of 200 mA  The range of the PMMC is 50μA The internal…

Q: Two metallic terminals protrude from a device. The terminal on the left is the positive reference…

A:

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.