A de motor draws a current of 40A at 220V. If 800 W is dissipated in the form of heat in the motor, how much power is available for mechanical work?
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A: Given, An electric motor operating at voltage, V = 100 V Current drawn, I = 10 A Efficiency, η=25 %
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A: The expression for the power is given as, When current is not double then, When current is double…
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A: Given, Battery of emf, ε = 12 V Supplies current, I = 5 A Time, t = 2 min = 120 sec
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A: Electrical Energy = Power (W) x Time (s) and Power (Watts) = V x I
Q: What is the formula for power? A. Work / time B. Work / time^2
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A: Referring to the given points:
Q: 23. An electric motor is running on 120 V. The current is measured to be 2 A. How many ohms of…
A: The solution is given below.
Q: 2. Explain the difference of power and energy.
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Q: the cost of using a 5 horsepower motor for 2 hours if the rate is 9 cents per kWh
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Q: 37. Motors are usually rated in terms of their horsepower output. In order to calculate the…
A: We are authorized to answer the first question since the exact one wasn’t specified. Please submit a…
Q: Pl:- A – what is the cost of using 200W oil-burner motor running b00 min a week for 7 months at g ¢…
A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again. The…
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Q: The power to a device is 40 joules per second (J/s). How long will it take to deliver 640J?
A: Given data: To power the device power required is P= 40 Joules/sec The energy required to be…
Q: QI: If the current in a resistor doubles, what happens to the dissipated power? (Assume the resistor…
A: So here according to the question current increased doubled.
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A: since there are multiple questions uploaded within the given question, therefore solving the fufirst…
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A: Given data: A DC generators delivers Current, I=30 A Load voltage, V=120 V Input power, Pin=4500…
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A: Given, Electrical heater power rating, P = 125 W Time taken, t=24 days×24 hr=576 hr
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Q: How much energy does a 3-hp motor deliver in 10 minutes? Assume that 1 horsepower = 746 W.
A: Given, Power, P=3 hpTime, t=10 min Also, 1 hp =746 WAnd,1 min =60 sec
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A: Givenweight=150 lbheight=2 feet Work done is equal to product of force and displacementW=F*h
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A: kWh is the units of Energy Energy is the product of power and time. Power expressed in kW and time…
Q: 36. A machine motor requires 20 A at 120 V. If the motor's output is 2300 W, what is the efficiency…
A: Given, a machine motor requires Current, I = 20 A Voltage, V = 120 V Motors output, Po=2300 W
Q: Problem 3 A water jet consumes "3X50"W for 126 hours a week. What is the energy consumed (kWh) for a…
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Q: If a 100 W machine runs for 20 hours per day, then estimate the total energy consumption per month…
A: Given 100 w machine runs for 20 hours per day Assume 30 days are there in a month
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Q: 5. A dc motor draws a current of 40A at 220V. If 800 W is dissipated in the form of heat in the…
A: 5. Given, IL=40 AV=220 VPL=800 W
Q: Ql:-A - what is the cost of using 200 W oil-burner motor running 600 min a week for 7 months at 9¢…
A: As per our policy, i am attempting first question. Given data, P=200 W
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Q: If an energy meter makes 5 revolutions in 100 seconds, when a load of 225 W is connected, the meter…
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Q: How much matter will be converted entirely to energy to produce 25 million kWh?
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Q: The Cost of Electricity Watts and kilowatts are measurements of the work being done as electric…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
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- f) To what voltage the machine will cxcite when the field resistance is 55 and the speed 800 rp.m. ? 05 1. Field current (A) 10 50 100 175 4 EMF () 220 245 262If a motor is rated at 6.5kW, how much work can it do in 30 minutes?A dc series motor drives a load a 30rev/s and takes a current of 10A when the supply voltage is 400V. If the total resistance of the motor is 20 and the iron, friction and windage losses amount to 300W, determine the efficiency of the motor ANSWER: % Blank 1 Blank 1 Add your answer
- 1-13 Describe Kirchhoff's Voltage Law. Explain how it relates to the principle of the conservation of energy.A 12 V DC electrical motor draws a current of 18 amps. How much work does this motor produce over a 10-minute period of operation? O 97.42 kJ O129 6 kJ 216.0 kJ 318 2 kJ A Moving to another question will save this response. alda.A heater consumes 1.6 kW of power at 220V voltage. Find the resistance of the heater and the energy it will produce in 5 seconds. A 4560 Joule B 900 Joule C 8000 Joule D 4600 Joule E 7800 Joule
- If an energy meter makes 5 revolutions in 100 seconds, when a load of 225 W is connected, the meter constant is?The meter constant of a single phase 230 V induction watt hour meter is 400 rev/kWh. The speed of the meter disc for a current of 10 A of 0.9 pf lagging will be ?For a 20 A, 230 V energy meter, the number of revolutions per KWh is 480. If upon test at full load, the disc makes 50 revolutions in 76 seconds, determine the error in the following as a percentage of metered values: (i)power consumed and (ii) energy consumed. Comment on the results. Suggest the corrective actions to be taken.
- The deflection angle of the pointer of an ideal moving iron meter is 20° for 1 ampere dc current. If a current of 3 sin(314t) is passed through the ammeter, then the deflection angle is ?The maximum power that can be generated by a wind turbine is called Select one: Cut-in Power Rated Power Cut-out Power lock-in PowerThe armature of a de generator has 0.050 effective resistance. Each brush has an effective resistance of 0.01Q. The terminal voltage is 100 volts, while the current is 40 Amperes. What is the efficiency of the machine?