What is power? This question is impossible to answer due to the fact the word "strength" has several contradictory meanings. Those distinct meanings are incompatible, and the contradictions confuse everybody. in case you do not recognize electricity, you're not by myself. Even instructors, engineers, and scientists have a difficult time grasping the concept.
Glaringly "electricity" cannot be several various things at the equal time. sadly we have described the phrase electricity in a loopy way. Because the phrase lacks one awesome which means, we can never pin down the nature of power. in the end, we're compelled to claim that there is no such stuff as "power" at all! Here's a short example to illustrate the hassle.
Do turbines make electricity? To reply this query, don't forget the family light bulb. inside a lamp twine, the fees (the electrons) sit down in a single vicinity and wiggle backward and forward. it is AC or alternating modern. at the same time, the waves of electromagnetic discipline pass unexpectedly forward. This wave-strength does now not wiggle; instead, it races along the wires because it flows from the distant generators and into the light bulb. Good enough now ask yourself this: when "electricity" is flowing, is it known as an electric powered current? Yes? if so, then "power" is actually the charges already in the wires, in which a drift of electricity is a waft of charge. And consequently, we ought to say that the "strength" sits within the wires and vibrates backward and forward. Generators do not create any, and electricity does no longer waft forward via the wires. Subsequent, ask yourself if power is a form of energy. If it's power, then energy isn't the movable fees. Rather, electricity is fabricated from invisible electromagnetic fields, and it doesn't wiggle from side to side in the AC cables. As a substitute, it can most effective exist in the space out of doors the wires, and no longer in the metallic. Generators do create energy, and it races along the wires at excessive velocity. Yet please notice that power cannot do both, it cannot be both the prices and the fields, the electrons, and the electricity. So which one is absolute "the power?" Is it the wiggling electrons in the wires? Or is it the high-velocity EM field power? The professionals sadly cannot agree on a narrow definition. The reference books deliver conflicting answers, so there *is* no answer.
If someone asks whether turbines make power, it exposes a tremendous flaw in the manner we communicate approximately "energy". If we are able to repair this flaw, perhaps our factors will sooner or later make the experience.
Under are the five most common meanings of the phrase strength. Which one do you believe you studied is right? Consider this carefully, due to the fact if any such meanings are correct, all the others ought to be incorrect! in the end, no "science term" need to ever possess numerous conflicting definitions. Lamentably our dictionaries and encyclopedias include all of those contradictions. (Click the hyperlinks to find out more about each.)
1. The scientist's definition: "energy" way most effective one component: quantities of energy are measured in Coulombs, so "power" is the electrons and protons themselves; the electrical charge within the wires, and no longer the drift.
Examples: present day OF electricity. Quantity OF energy. COULOMBS OF power.
2. The regular definition: "power" way handiest one issue: the electromagnetic discipline energy dispatched out by batteries and turbines.
Examples: rate OF strength. KILOWATT-HOURS OF energy.
3. The grade-school definition: "power" approach handiest one component: it refers to the glide of electrons, the flowing movement of electric rate.
Examples: "contemporary" electricity. AMPERES OF electricity.
4. "Energy" manner best one thing: it refers to the quantity of imbalance between quantities of electrons and protons.
Example: "STATIC" power. DISCHARGE OF energy.
5. "Electricity" is not anything other than the lessons of phenomena related to electric charges.
Examples: BIOELECTRICITY, PIEZOELECTRICITY, TRIBOELECTRICITY, THERMOELECTRICITY, ATMOSPHERIC energy ...and many others.
6. Other less not unusual definitions:
"Energy" refers to the flowing motion of electrical energy (electric power, Watts of electricity)
"Power" truly means the electric capacity or e-discipline (Volts of strength)
"Electricity" most effective way the glowing nitrogen/oxygen plasma (sparks of electricity)
"Strength" is nothing but a discipline of technological know-how (fundamental electricity, advanced power)
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Electricity, n.
The strength that reasons all herbal phenomena no longer recognized to be resulting from something else.<grin!>
(Ambrose Bierce, The devil's Dictionary, 1911)
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If we want to agree on an unmarried accurate definition of "electricity," which definition ought to we select? The medical model, primary above? however, that would mean that all of our books are wrong, on the grounds that books insist that strength is the strength, or that energy is the movement of charges: the modern-day. except for the CRC manual and the NIST SI physics requirements, the few textbooks which do use the clinical definition are all seventy years vintage, or older.
properly, perhaps we do not need to select simply one definition. ought to we blend them? ought to we permit power to be an "elastic term?" suppose we forget about a lot of these contradictions and alternatively pretend that each one of the above definitions is real. below is the "clean" and "easy" description of energy which ends up:
Power is pretty easy: "strength" is just the flowing movement of electricity! strength is a mysterious incomprehensible entity which is invisible and seen, both at the identical time.also, power is both a shape of strength and a form of being counted. both. strength is a type of low-frequency radio wave which is the product of protons. it is a mysterious force which can not be visible, and but it looks as if blue-white fireplace that arcs throughout the clouds. It moves forward at the velocity of mild... yet it sits and vibrates inner your AC wire without flowing forwards in any respect. it's absolutely weightless, but it has a small weight. while electricity flows thru a mild bulb's filament, it gets changed entirely into mild. yet no longer one little bit of strength is ever used up by using the mild bulb, and all the power flows out of the filament and backs down the other wire. university textbooks are full of electricity, but they have no electric powered fee! power is like sound waves, no no, it's just like wind, no, the strength is just like the air molecules. power is like vehicles on a highway, no, the power is the speed of the vehicles, no, power is much like "visitors waves." electricity is a category of phenomena ...a class of phenomena which can be stored in batteries! in case you need to measure an amount of strength, what devices need to you use? Why Volts of strength, of the route. And additionally Coulombs of energy. And Amperes of energy. Watts of energy and Joules, all at the same time. yet "energy" is definitely a class of phenomena; simply a sort of event. considering we can not have an amount of an occasion, we cannot genuinely degree the quantity of energy in any respect... proper? proper?
Heh heh.
Does my description above sound silly and not possible? you are right. it's miles. The word "power" has contradictory meanings, and I am attempting to expose what takes place when we are given more than one meaning. Power isn't always both sluggish and speedy at the same time. It isn't both visible and invisible. And energy is not the flowing movement ...of electricity.
Instead, approximately ten separate matters have the call "strength." there's no unmarried stuff called "strength." power does no longer exist. Franklin, Edison, Thompson, and tens of millions of technological know-how teachers ought you've had a long talk with Mrs. McCabe earlier than they decided to provide one single call to a massive variety of unbiased technological know-how standards.
Mrs. McCave turned into invented via Dr. Seuss. She had twenty-three sons. She named all of them "Dave."
on every occasion we ask "what is electricity," that's just like asking Mrs. McCave "who is Dave?" How can she describe her son? There may be no solution for the reason that query itself is inaccurate. it's incorrect to invite "who's Dave?" because we are silently assuming that there may be best one Dave when actually there are numerous one-of-a-kind humans. they all just show up to be named Dave. Who’s Dave? Mrs. McCave can not answer us until she first corrects our false impression. Dave would not exist. She needs she'd given them all separate names.
For the equal reason, we'll in no way find a simple solution to the question "what is energy?" because the question itself is wrong. First, we must recognize that "electricity" does no longer exist. There’s no single issue named "strength." We ought to receive the truth that, at the same time as numerous various things do exist inside wires, human beings wrongly name they all by way of an unmarried name.
So never ask "what is energy". Alternatively, discard the word "power" and begin using the correct names for all the separate phenomena
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