Explain the loading effect on voltmeters and ammeters in detail.

Q: How to construct a voltmeter by galvanometer?

A: Voltmeter - A voltmeter is a device, used to measure the potential difference between two ends of…

Q: PMMC type meter has a full scale deflection of 10 mA. The resistance of the coil is 30 ohm So,…

A:

Q: Give a detailed description of an expirment about 'D'Arsonval Meter Movement as DC ammeter'.Support…

A: D’Arsonval Meter Movement is used as DC ammeter, Ohmmeter, and voltmeter. It is a current sensing…

Q: Look for Requivalent(Equivalent Resistance).Please show details

A: In this question, we need to determine the equivalent resistance across the terminals a and b. Here…

Q: An AC voltmeter uses the circuit shown below, where the PMMC meter has an internal resistance of 500…

A: Given- An AC voltmeter- Internal resistance = 500 Ω. DC current = 1 mA To Find- The value of Rs.

Q: explain briefly and consicely the importance of tolerance in resistors

A: Tolerance of resistor is the nothing but how much is the resistance value measured of its actual…

Q: Use your own words to explain how current flow in nanotransistors.

A: Specification of Nano-transistor  Separation between gate electrode from the channel is smaller…

Q: Discuss how impressed current can prevent the corrision of metals.

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Q: A DC voltmeter has a sensitivity of 1000 ohm/volt. When it measures half of full scale what is the…

A: Given: Sensitivity(S)=1000ΩVoltS=1KΩ/Volt

Q: Explain stages of generalized measurement system model in detail and analogies it with any practical…

A: The generalized measurement system consists of three main functional elements and  that are in…

Q: 4. Apply the technique of single node pair analysis to the upper right node and find ix (b) Now work…

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Q: Explain the theory of voltmeters sensitivity and current's gain of the ammeter?

A: Voltmeter sensitivity is defined by the reciprocal of the amount of current required for full scale…

Q: Describe the function of voltmeter and ammeter

A: Voltmeter and ammeter is an instrument which are used in an electrical or electronic circuits. -The…

Q: B) Explain with neat diagram the principle of operation of an Electrostatic Voltmeter. Discuss its…

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

Q: Mention applications of a resistance strain gauge for measurement of non-electric quantities.

A: The applications of a resistance strain gauge for measurement of non-electric quantities are as…

Q: An AC ammeter is connected in series with the primary winding of T1. What is the expected current…

A: The output RMS value of output voltage is as=8.48 voltsThe RMS current measured by the ammeter

Q: Discuss the operation of a multi-meter

A: Solution :    In the above question they are interested to know the operation of a multimeter.   As…

Q: 1. Find the power absorbed by each of the six circuit elements + vi v2 +. V3 - 50 250 200 40V V= {…

A: Find the power absorbed by each of six elements given in the circuit ?

Q: Which of the following is NOT a variable in voltametric methods? A. How the current is applied B.…

A: In this question we need to choose a option which is NOT a variable in voltametric methods.

Q: +2V D3 - tov 8,24R -5V Di 12KN lokn OV Di, Dz and D3 ane ideal diodos. which diodes are on loff1

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Q: Summarize on how testing is carried out on isolators and circuit breakers of high voltage system.…

A: The Electric power demand is rising rapidly. Now a days, Huge quantity of electrical power is needed…

Q: What are the possible advanced changes to the voltmeter in the future?

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

Q: Discuss the moving iron voltmeter and ammeter?

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

A: The explanation is as follows.

Q: Indicate the functional elements of the following measuring devices shown in Figure

A: The functional elements for the measuring device(Bourdon tube pressure gauge) are as shown:

Q: What is Vacuum tube voltmeter and name its type?

A: When the vacuum tube is used for the amplification of the DC and AC voltage in a voltmeter is…

Q: 2. A DSB-SC AM signal is modulated by the signal m (t) = 2cos2000nt + cos6000nt. The modulated…

A:

Q: What is an integrated circuit and how is it used in electrical engineering?

A: An integrated circuit (IC) refers to a microchip or a micro electronic circuit or simply a…

Q: What minimum value of series resistance is required when three 10-watt, 10-volt, 1000-mA zener…

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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.