2. Give the definition of a wattmeter.

Q: Consider the same 470 ohm resistor with 9.4 volts across it. What is the power consumed through that…

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Q: Notes Convert 100 watts of power into dBW? Show all steps Done

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Q: The bill of commercial load based on Iragi electricity tariff of 1600 kWh costs

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Q: What is the MW indicated when the wattmeter reads 750 watts of a 230 kV substation, the PT ration is…

A: It is given that: Wattmeter reading=750 WPT Ratio=1000/1CT Ratio=1200/5Potentital goint into…

Q: A business uses two 3 kW fires for an average of 20 hours each per week, and six 150W lights for 30…

A: It is given that Power P1 = 3 kW Time T1= 20 hours Power P2 = 150 kW Time T2= 30 hours Cost of…

Q: Example 20. Calculate the power drawn in a circuit given the following voltage and current…

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Q: What is the MW indicated when the wattmeter reads 750 watts of a 230 kV substation, the PT ration is…

A: Given parameters are: Wattmeter Reading, W=750W PT Ratio= 1000/1 CT Ratio =1200/5

Q: Four identical dry cells with an emf of 1.4 volts and internal resistance of 0.06 ohm each, are…

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Q: A business uses two 3 kW electrical fires for an average duration of 20 hours per week each, and six…

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Q: 23. In the circuit shown, the voltmeter, ammeter, and wattmeter read as follows: 230V, 1.9A, 345W.…

A: Given data, Input current = 1.9 A. Input voltage = 230 V. Input power = 345 W.

Q: Calculate the total electrical energy consumed for a load usage of 4 lamps (13 W each) for 8 hours a…

A: The product of electrical power and time gives the electrical energy. Electrical energy is measured…

Q: Load 2390 tums 710 turrs 28 VAC 350 2

A: Given circuit, Where, Primary number of turns, N1=2390 turns Secondary number of turns, N2=710…

Q: In the experiment 1, the values are tabulated, find the load power factor. VL in Volts W, in watts…

A: Given data, W1=111 W2=228 Now, tan ϕ=3W1-W2W1+W2tan ϕ=3111-228111+228tan ϕ=3-117339tan ϕ=-0.888…

Q: If both meters read equal and one is negative in the two element wattmeter, then the value of power…

A: Let the one wattmeter is W1 and the another wattmeter is W2

Q: What is wattage, if 10amps are on 240V? 23. What is wattage, if 5amps are on 240V? 24. What is…

A: 22. Wattage is known as the product of the voltage and the current of the system. It’s unit is…

Q: c) the total power delivered to the circuit.

A: In this question 1 part C We need to determine the power delivered by the circuit using the node…

Q: Using the measured values, calculate the following: - a. power supplied by the power supply, Pin b.…

A: Power is the time rate of change of energy. Its SI unit is watt. It is the product of voltage and…

Q: ) Sketch the network of Figure below and determine the de voltage available. Meal Dide Meal Dide 2.2…

A: When diode is forward bias it is on and when diode is reverse bias it is off. During on condition…

Q: 19. 550 foot pounds per seconds are equal to? ______________ 20. What is the formula to calculate…

A: 19.  Since, Therefore, 550 foot pounds per second is equal to the 1 horse power.

Q: A business uses two 3 kW fires for an average of 20 hours each per week, and six 150W lights for 30…

A: According to the question, it is given that Power P1 = 3 kW Time T1= 20 hours Power P2 = 150 kW Time…

Q: Kindly give explanation i already have answer  A business uses two 3 kW fires for an average of 20…

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Q: In two wattmeter power measurement method, if one meter read twice the other, then the power factor…

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Q: what is the power factor of the load on a 460volts, 3phase system if the ammeter indicates 100amps…

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Q: Compute the power absorbed by the 20Ω resistor in the circuit using any method

A: to compute the power absorbed by the 20Ω resistor in the circuit using any method.

Q: If one meter read twice the other in the two element wattmeter, then the value of power factor is…

A: Let one wattmeter measures power = p1 Another wattmeter measures power =p2 From the given statement…

Q: 2/The voltage drop across a resistor of 150 ohm is 10 volts. The wattage of the resistor must be 1…

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Q: Determine the overall efficiency for chemical energy to light energy conversion for Figure 3 if the…

A: The solution can be achieved as follows.

Q: The voltage drop across a resistor of 150 ohm is 10 volts. The wattage of the resistor must be 1 W.…

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Q: Calculate the line and phase current drawn bythe load

A: In this question,  We need to calculate the line and phase current drawn by the load.  Current I=…

Q: 2. Three similar coils each having resistance of 29 2 and reactance of 20 N are connected in star…

A: Given data, Resistance is R = 29 ohm, Reactance is X = 20 ohm, Voltage is V = 436 V

Q: What are the watt-seconds supplied by a motor developing 3 British hp for 4 hours?

A: Given, Motor rating is 3 HP British Time t=4 hours

Q: 1- Why the capacity of SG is taken in kVA and for IM is taken in kW?

A: Electrical machines can be either generator or motors. They can be either AC machines or DC…

Q: A business uses two 3 kW fires for an average of 20 hours each per week, and six 150W lights for 30…

A: Given,A business uses,Two 3 kW fires for an average of 20 hours each per week, and six 150W lights…

Q: 1. explain why A wattmeter will indicate zero when the current lags (or leads) the voltage by 90 0.

A: As per the policy, I can only answer one question at a time. Please ask the second question…

Q: answer the question briefly 1.) What is ampere-hour and ampere-hour efficiency? 2.) What is…

A: Given, The question is about ampere hour and watt hours and their effeicincies. Please find the…

Q: In two wattmeter meter method, the readings of two wattmeters are 4,566 and 3,672. Calculate the…

A: Given in the question: Wattmeter reading 1: W1 = 4566 W Wattmeter reading 2: W2 = 3672 W The power…

Q: Define what is Wattage. What is its formula?

A: Wattage is a unit of power.

Q: A power plant has 2-100MW units running for 7250 hours in a year and 1-50MW running for 2500 hours…

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Q: In two wattmeter power measurement method, if one meter read twice the other, then the power factor…

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Q: 1. Is a wattmeter required to measure the real power delivered to a resistive load? __________…

A: 1- A wattmeter measures watts, real power. When the system is considered as balanced With a…

Q: Two wattmeter connected to measure power read W1=30kW and W2 =55kw. What is the power facto

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Q: explain the construction of a wattmeter

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Q: Formula of wattage

A: Formula of wattage

Q: Q1. Answer three from four: 1. Does the efficiency vary with power factor? If yes, why.

A: As per the honour code I will answer only the first question. Kindly repost the other questions…

Q: Explain why a wattmeter will indicate zero when the current lags (or leads) the voltage by 90…

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Q: Is a wattmeter required to measure the real power delivered to a resistive load? __________ Explain.

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Q: For the circuit shown in fig (1), find the currents distribution and the reading of all wattmeters.

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Q: How to convert 10 kW of power into the unit dBW?

A: In this case, the amount of power given is P=10 kW=10×103 W. This power is to be converted into the…

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.