Which of the formulas listed is correct for determining power? A. P = (E)(E)/R B. P = (I)(R)(R) C. P = (I)(I)/R D. P = E/R

1 Answer

Answer :

Answer: A

Related questions

Description : Formulas : Apparent Power , Real Power , Power factor

Last Answer : Formulas: Apparent Power = VI (Voltmeter reading x Ammeter reading) Real Power = VI Cos Ф (Watt meter reading) Power factor (Cos Ф) = Real Power / Apparent Power Indicated Power = Observed ... Power -Actual Power) x100 /Actual Power Actual Power = Voltmeter reading x Ammeter reading x Power factor

Description : The mean score on any class test is the result of Options: A) dividing the sum of all scores by the number of scores B) determining the middle score when all the scores have been listed from ... C) determining the most frequent score. D) Adding all the scores and dividing by the most frequent score 

Last Answer : A) dividing the sum of all scores by the number of scores 

Description : As shown in the illustration, which listed action will occur first when push button 'Q' is depressed? EL-0017 A. Contacts 'H-1', 'H-2' and 'H-3' close. B. Contact 'H-4' closes. C. Operating coil 'C' energizes. D. Switch 'R' opens.

Last Answer : Answer: C

Description : If the values of 'C' and 'R' shown in the illustration were 1 microfarad and 100 kOhms respectively, at what listed time would 'C' be considered fully charged? EL-0086 A. 0.1 second B. 0.2 second C. 0.5 second D. 5 seconds

Last Answer : Answer: C

Description : If the values of 'C' and 'R' shown in the illustration were 1 microfarad and 100 kOhms, which of the listed time intervals would equal one 'time constant'? EL-0086 A. 0.1 second B. 0.2 second C. 0.5 second D. 5.0 seconds

Last Answer : Answer: A

Description : If the values of 'C' and 'R' shown in the illustration were 1 microfarad and 3 Megohms respectively, at what listed time would 'C' be considered fully charged? EL-0086 A. 0.33 second B. 3 seconds C. 6 seconds D. 15 seconds

Last Answer : Answer: D

Description : If the values of C and R shown in the illustration were 1-microfarad and 3- Megohms respectively, which of the listed intervals would equal one 'time constant'? EL-0086 A. 0.33 second B. 3 seconds C. 6 seconds D. 15 seconds

Last Answer : Answer: B

Description : In the expression of dynamic load capacity P=XVF(r) + YF(a), V stands for ? a) Race rotation factor b) Radial factor c) Thrust factor d) None of the listed

Last Answer : a) Race rotation factor

Description : Which of the listed colors properly describes a DC motor commutator when correct commutation is taking place? A. Shiny blue B. Burnished green C. Brick red D. Chocolate brown

Last Answer : Answer: D

Description : If a D.C. motor hums, but does not run when energized, which of the listed conditions could exist? A. Incorrect lead connections B. Incorrect brush setting C. A dirty commutator D. All of the above are correct.

Last Answer : Answer: D

Description : Which of the listed statements is correct when using an analog multimeter as an ohmmeter? A. The pointer should be adjusted to zero each time a new resistance range is selected. B. The ... C. Ohmmeters are not sufficiently sized to measure conductor insulation resistance. D. All of the above.

Last Answer : Answer: D

Description : According to Coast Guard Regulation (46 CFR) for emergency power and lighting systems, which of the listed items is the only permissible starting aid for the emergency diesel generator engine? A. Ether B. Lube oil heater C. Jacket water heater D. Fuel oil heater

Last Answer : Answer: C

Description : Which of the listed safety features should be provided in small rooms or lockers where batteries are stored? A. Installation of a fixed CO2 system. B. An exhaust duct is to be provided and led from within ... An exhaust duct is to be provided and led from the top of the locker to the open air.

Last Answer : Answer: D

Description : The winch shown in the illustration operates in any of the positions with the master switch in the 'lower' direction, but will not 'hoist' in any of the master switch hoist positions. Which of the listed faults ... '2M' in the power circuit may be badly corroded. D. Series relay 'FR' may be open.

Last Answer : Answer: A

Description : Which of the listed sections of an emergency switchboard is used to supply power for alarm signals under emergency conditions? A. The generator and bus transfer section B. The 450 volt, 60 cycle, 3 phase bus C. The 120 volt, 3 phase, 60 cycle bus D. The 24 volt DC bus

Last Answer : Answer: D

Description : Which of the listed meters uses a shunt connected in series with the load, but parallel with the meter movement? A. Voltmeter B. Power factor meter C. Ammeter D. Wattmeter

Last Answer : Answer: C

Description : Which of the listed precautions should be observed before spraying liquid solvent on the insulation of an electric motor? A. Slow the motor down to low speed. B. Disconnect the motor from the power source. C. Secure all ventilation in the area. D. Preheat the insulation to assist in cleaning.

Last Answer : Answer: B

Description : The rate at which heat is produced in a direct current circuit is equal to ____________. A. P divided by R B. I squared times R C. E divided by I D. I times R divided by T

Last Answer : Answer: B

Description : What are some important weather formulas (mathematical) (with units)

Last Answer : I’ll add a few more to the list Albedo Reflectivity Transmissivity

Description : How do I create a simple program that will pull information from a database, insert it into a few formulas, and spit out the answers?

Last Answer : answer:Welcome to Fluther. I have only the vaguest notion of the survey that you're trying to accomplish, but I do understand data. What will serve you very well for this is a ... simple enough exercise, which will only get more complex as your understanding improves and your needs increase.

Description : Excel spreadsheet help (formulas)

Last Answer : Which version of excel are you using? In 2010 it has a square root function which is =sqrt(CellNameHere). Also as far as the second problem with the multiplication table can you not just use the cell name for example =$B$1*A2 and then drag it down?

Description : Simply maths question about rearranging formulas?

Last Answer : answer:I'm not sure I quite remember how to do these types of problems. What I can offer is 0=0 is the answer I came up with quickly by trying to solve the equation. I couldn't find my old calc notebook, but you ... the left side uv = u^2+uv - u^2 subtraction of u^2 uv = uv divide by uv 0 = 0

Description : How to work out trig formulas in your head?

Last Answer : Memorize and be able to recreate this.

Description : Is there a book that will explain famous historical formulas?

Last Answer : answer:I know of no deeper and more complete explanation of Gödel's theorem than Gödel, Escher, Bach: An Eternal Golden Braid by Douglas Hofstadter. Although it's Pulitzer Prize-winning clarity ... . In fact just about any popularization of relativity (there are many) gives a suitable explanation.

Description : Simple question on rearranging formulas?

Last Answer : Yes. If you divide both sides by z, then you get r/z = xy since z/z = 1. Similarly, r/x = yz.

Description : What's the difference between these two formulas ?

Last Answer : Homework question?

Description : What is the best way to memorize formulas?

Last Answer : That's tough, man. Practice with them. I worked as a project estimator/manager which required me to remember all of these formulas (which sometimes made little sense, hard to explain, etc). The more ... of remembering the tougher ones. Only advice I have, sorry. It's awfully obvious, but it works.

Description : Linear Equations in Two Variables Class 9th Formulas -Maths 9th

Last Answer : Rational Numbers : Rational Numbers are numbers , which can be expressed in the form p/q, q≠0; where p and q are integers . The collection of all rationals are represented by Q. ∴ Q = {p/q ; p,q ... number of rational numbers x2 , x1, x3,... between any two rational numbers a and b so that a

Description : Introduction to Euclid's Geometry Class 9th Formulas -Maths 9th

Last Answer : An algebraic expression is the combination of constants and variable connected by the four basic operations (+, -, , ). For example : 2x , x2y , xy/3, 3 etc. Types of Algebraic expression : Polynomial in one variable : An ... b2) (x) a3 + b3 + c3 - 3abc = (a+b+c)(a2+b2+c2-ab - bc - ca)

Description : Triangles Class 9th Formulas -Maths 9th

Last Answer : Linear equation in one variable: Linear equation of the form ax + b = 0, where a, b are real numbers such that a≠ 0. For example, 3x + 5 = 0. The letters used in an equation are called ... equation. More over every solution of the linear equation is a point on the graph of the linear equation.

Description : Circles Class 9th Formulas -Maths 9th

Last Answer : Two geometric figures are congruent if they have the same shape and the same size. Corresponding parts of congruent triangles are congruent (equal) (c.p.c.t.c) i.e.,if ΔABC ≅ ΔPQR then ∠A ... sides is greater than the third side. Difference of any two sides is always less than the third side.

Description : Surface Areas and Volumes Class 9th Formulas -Maths 9th

Last Answer : Circle is the locus of all such points which are equidistant from a fixed point, this point is known as centre while distance of any point from centre defined as radius of circle. Here O is fixed ... the exterior angle is equal to the interior opposite angle. An isosceles trapezium is cyclic.

Description : What are all the formulas of moderation ?

Last Answer : All sources: 1. Rectangle area = length width 2. Rectangle range = 2 (length + width) 3. Rectangle angle = √ (length ² + width ²) 4. Square area = (one arm) ² 5. Range of square area = 4 Length of ... 4 14. If a isosceles triangle has equal sides length a and land b then area = b / 4 √ (4a²-b²)

Description : What are Kepler's formulas for planetary motion ?

Last Answer : Kepler's formula for planetary motion is 3.

Description : Scientists of which country provide three formulas ?

Last Answer : German scientist provides three formulas.

Description : When did Lord Kelvin give 2 important formulas of thermodynamics ?

Last Answer : In 1850 , Lord Kelvin gave two important theories of thermodynamics.

Description : Who gives 2 important formulas of thermodynamics ?

Last Answer : Lord Kelvin gives two important formulas for thermodynamics.

Description : What are Faraday's formulas ?

Last Answer : First source: a wire or coil e. M. F is induced when the magnetic flux or line of magnetic force associated with the wire or coil changes. Second law: The amount of induced ... magnetic field , then an electromotive force induced in the conductor is proportional to the rate of occurrence.

Description : How many hook formulas ?

Last Answer : Hook's formula is one.

Last Answer : 2 refraction formulas

Last Answer : Scientist Galileo discovers formulas for falling objects.

Last Answer : Galileo Galilei discovered the law of motion

Last Answer : There are two sources of refraction.

Last Answer : Reflection formula: two.

Description : Does anyone know a collection that contains calculation formulas for electricity? I am thinking here of Ohm's law, Kirchhoff's law, and so on. 

Last Answer : I tried to gather a few formulas from my studies, pasting them in the form of an image. [img alt_text = 'Electrical formulas' description =' Voltage, ohmic law, current, resistivity, wire resistance, thermal ... law II. Act (Loop Act) '] https:///wp-content/uploads/2020/02/keplet1.jpg [/ img]