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Why do kettles use an alternating current rather than a direct current?
Wiki User
∙ 13y ago
Normal household current is AC not DC. If the kettle was DC what would it plug into?
Actually, as a kettle is a purely resistive device it will perform equally well with a DC supply as with AC. Assuming you could plug it into a DC power source of the same voltage as it's AC supply it would boil water in approximately the same length of time.
Wiki User
∙ 13y ago
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3 applications where direct current is preferred over alternating current?
1st is in a.c there is frequency say 50 hz in d.c. it is zero means a.c. produces 50 cycles per second . n d.c. is steady current. 2nd is in a.c inductance comes into picture. but when it is d.c. inductance is zero. 3rd is in a.c skin effect is there. due to this its resistance is high in a.c. as compared to when d.c. current is flowing. 4th is in a.c ,we can quench the arc when fault occurs very easily rather then d.c. current. 5th and major difference is that when we have a.c. quantity we are able to step up or step down the voltages but in d.c. its not possible to get. i hope everybody can understand. bye.
Which of these could be formed by glaciers?
Two interesting land forms that were formed by glaciers are called kettles and moraines. The kettles are sometimes very large and form large lakes. The moraines are hills that are found surrounding the kettles. Most are made of sand, gravel and small rocks, although they can have some rather large boulders in them.
What is the advantage of direct microscopic count?
You get an accurate answer with it rather than using semi quantitative methods to get estimated results.
Is an electric current a movement of electrons at near the speed of light?
No. The current travels near the speed of light; the individual electrons don't. Rather, energy is transferred from one electron to the next.
What and when did we use zinc in science?
Zinc is used in very simple batteries (usualy for demonstration rather than actual power scources.) generaly in chemistry, you make a galvanic cell out of zinc rod, zinc sulphate, copper wire, copper rod, copper sulphate and a salt bridge made of potassium nitrate, and that will give you a small direct current of electrons from the zinc side of the cell to the copper side of the cell and a conventional current from copper to zinc
Advantages of Ac to DC converter?
some things requre a dc (direct current) rather than an ac (alternating current)
Is 1 volt more then 1 DC volt?
No, it is the same. DC stands for direct current rather than AC, which is alternating current.
What is direct current and alternating current?
Direct current is a constant, steady state current, such as obtained from a battery. Alternating current is constantly switching polarity, usually in a sinusoidal waveform, such as obtained from an alternator, a form of generator that does not have a commutator.Direct Current and Alternating Current:The first and simpler type of electricity is called direct current, abbreviated "DC". This is the type of electricity that is produced by batteries, static, and lightning. A voltage is created, and possibly stored, until a circuit is completed. When it is, the current flows directly, in one direction. In the circuit, the current flows at a specific, constant voltage (this is oversimplified somewhat but good enough for our needs.)The other type of electricity is called alternating current, or "AC". This is the electricity that you get from your house's wall and that you use to power most of your electrical appliances. Alternating current is harder to explain than direct current. The electricity is not provided as a single, constant voltage, but rather as a sinusoidal (sine) wave that over time starts at zero, increases to a maximum value, then decreases to a minimum value, and repeats.
In electricity what does ac stand for?
I belive it is Air Conditioning. A related intellectual curio of note, which may be instructive, is the brou-ha-ha surrounding the titular meaning of legendary hard-rock outfit AC/DC. While boffins have suggest rather lugubrious uses of the acronym, including 'After Christ, Devil's Children', and the like, the band insists that the appellation was culled rather prosaically from the lettering found on electrical equipment, which they insist means 'Alternating Current/Direct Current'. If (and only if) storied rockers AC/DC are correct, the 'AC' about which you query must stand for 'Alternating Current'.
Is electricity AC Or DC currant which one?
Electricity or rather electric currant can be either AC or DC. AC means alternating current (as in that electricity that is supplied by the mains) and DC means direct current (as in that electricity supplied by a battery)..
What is a d.c motor?
A DC motor in simple words is a device that converts direct current(electrical energy) into mechanical energy. It's of vital importance for the industry today, and is equally important for engineers.
What is Ac plus Dc elctricty use?
In 1887 direct current (DC) was king. At that time there were 121 Edison power stations scattered across the United States delivering DC electricity to its customers. But DC had a great limitation -- namely, that power plants could only send DC electricity about a mile before the electricity began to lose power. So when George Westinghouse introduced his system based on high-voltage alternating current (AC), which could carry electricity hundreds of miles with little loss of power, people naturally took notice. A "battle of the currents" ensued. In the end, Westinghouse's AC prevailed.But this special feature isn't about the two electrical systems and how they worked. Rather, it's a simple explanation that shows the difference between AC and DC.To find out more about alternating and direct current, what exactly an electric current is, and two ways that the currents can be produced, check out the interaction to the left and the pages that follow.DC (Direct Current)OFFAC (Alternating Current).To find out more about alternating and direct current, what exactly an electric current is, and two ways that the currents can be produced, check out the interaction to the left and the pages that follow.DC (Direct Current)OFFAC (Alternating Current)
Electrons move from the power plant to homes in an alternating current?
Alternating current, yes. But it is not quite correct to say "electrons move to the homes... " rather, it is the CURRENT that moves to the home. It is more like a wave, where the energy is transmitted from one particle to the next.
Why are most kettles shiny rather than black?
cause they are
What kind of current goes back and forth or oscillates rather than traveling in only one direction?
what current goes back and forth, or oscillates, rather than traveling in only one direction
Why you say AC as alternating current not alternating voltage?
Because its the current that is alternatingAnother AnswerThere's absolutely nothing wrong with using the term 'alternating voltage', if you are describing voltage rather than current. However, In engineering terminology, the abbreviationa.c.is considered to be anadjective. So, it is also quite normal to talk about an 'a.c. voltage', in just the same way as we describe an 'a.c. system', or an 'a.c. motor', etc.
Why it is called alternating current not alternating voltage?
There's absolutely nothing wrong with using the term 'alternating voltage', if you are describing voltage rather than current. However, In engineering terminology, the abbreviation a.c. is considered to be an adjective. So, it is also quite normal to talk about an 'a.c. voltage', in just the same way as we describe an 'a.c. system', or an 'a.c. motor', etc.
