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Why is that alternating voltage is used in appliances in homes not direct voltage and mixed voltage?
Wiki User
∙ 14y ago
Alternating current is used in the bulk electric system for power transportation because it is easier to step up/down voltage, therefore easier to minimize loss due to transporting over a long distance.
Voltage is stepped up / down using Transformers. In the bulk electric system, there are DC power lines. To step up / down / interface with other locations, the DC voltage is first converted to AC, then back to DC using large power transformers and rectifiers.
Many devices used in homes use DC by first converting the AC from the wall - cell phones, printers, computers, televisions, etc. Many kitchen appliances - ovens, fridges, dishwashers, mixers, etc. - use mainly AC for the "heavy" loads, and may convert to DC for sensitive electronics. There are several very good reasons they use AC for the "heavy loads":
1. That's what comes out of the wall, and it will do the job just as well as DC, so why change?
2. Simplifies design to not have to convert from AC to DC.
3. High power DC electronics can get expensive, so this minimizes cost.
There are more reasons, but hopefully this gives you an idea.
Wiki User
∙ 14y ago
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Is a alternating current found in the circuits of homes?
Yes, it is the normal kind of electricity delivered to homes which are connected to an electric utility, as in all developed countries. If a home has solar electricity that is direct, but is usually converted into alternating for use, since all normal home appliances are designed to use alternating current. The big reason alternation is used is because it works with transformers, so high voltage used to send electricity in large power over long distance can be transformed to lower voltages more easily and safely used in homes. Alternation is also a bit easier to provide from rotating generators at the power station.
Is home lighting AC or DC?
Electricity supply services for lighting and other electrial appliances used in homes are alternating current (ac).
Is the power line voltage available in your homes a DC or an AC voltage?
We deliver power on the power grid as an AC voltage. That's alternating current, and that's what is available in your home.
Why do you have AC voltage in homes?
Alternating Current is safer than Direct CurrentAnswerBecause (1) you electricity utility supplies a.c., notd.c., and (2) the ease with which a.c. voltages can be changed and rectified for equipment (e.g. audio equipment) that requires d.c.
Can you use a 220v-60hz microwave in Australia?
Yes, using a 220v-60hz microwave in Australia is fine. The voltage of alternating current supplied to homes in Australia is 220v. The frequency of the voltage is 50hz.
Why do you use alternating current in your homes rather than direct current?
Electronic appliances in our homes use dc to operate however externally they are connected to ac source because their internal circuit already contains rectifier. we use ac in our home due to: 1.safety:dc is dangerous then ac. 2.cost:appliances or material required in transmission of dc is costly
What type of electricity is used in homes?
You must use alternating current electricity because mostly the household devices work on AC. Moreover, the AC from the Hydroelectric power plants delivers high voltage necessary to feed the microwave oven, and other devices. As a secondary electricity supply you may use a solar panel which delivers direct current, which can only feed devices that don't require high voltage and works on dc., or a wind turbine which may deliver alternating current but it delivers small power which is not enough to make your main household devices to work.
How all the devices work on 220 volt when electricity is supplied at our homes from power stations?
It isn't an accident. Each country has to select a working voltage for all its electrical appliances. When everything works on a standard voltage it simplifies the market for appliances. In your country it's 220 v, in Europe it's 230 v and in the US it's 120 v, or 240 v for high-power appliances.
What type of current is in homes?
AC alternating current
Why do people use alternating current in your nomes today?
The use of alternating current permits voltages to be altered via transformers, so for efficiency the voltage at the generator can be stepped up for transmission to reduce losses and cost, then stepped down again at the user's end to whatever voltage is needed. For safety reasons homes use a lower voltage than does industry. Multi-phases can be used to give more than one voltage from the same supply without transformers.
A Type of power used by appliances in the homes is what?
home appliances are rated by watts or amps
What is an electric current that periodically changes direction?
There are two types of electric current, DC or direct current and AC or alternating current. The power delivery to homes in most places in the world is AC or alternating current. This is where the electrons are pushed one way then back the other way with usually 100 or 120 changes in direction per second. This produces 50 or 60 forward/back cycles every second called 50Hz or 60Hz.
