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The third pin (not found on some electrical appliances) is for "Ground." This means that the appliance has a higher electrcal load and needs a ground wire to stabilize the output of electricity.
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∙ 14y ago
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∙ 12y agoCoz d designer and architect of it wanted it to be like that
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∙ 13y agoThere is no shock hazard due to a metal case.
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∙ 14y agoElectrical plugs require at least two prongs to allow a connected device to complete a hot to neutral circuit. A plug with a third prong also allows the body of the appliance to be grounded.
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∙ 11y agoDouble insulated appliances and lamps do not have a grounding circuit or pin on the plug.
Wiki User
∙ 12y agobecause some appliances need an extra plug because they have more electicity and the extra plug is there to stabilize the flow.
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Why pins of plug are cutted?
Some pin plugs are mostly seen with three pins. The two pin plugs being flat, equal, and has a hole because this is where electricity flows. The round pin plug is used to absorb more flow of electricity for example computers and laptops have round pin plugs because it needs a lot of electricity, the round pin plug is only cut when using a device that doesn't need to much electricity to work.
Why the cord and plug get hot?
A perfect wire would have no resistance, but we don't live in a perfect world, so they do. Anything that creates electrical resistance ends up turning some of that resistance into heat. The plug of a cord tends to have more metal (hence more resistance) than the rest of the wire, so it gets relatively hotter.
What are dissecting pins?
dissection pins are little needles used to pin (in the case of a frog for example) the frogs hands and feet to the dissection tray. in some cases, dissection pins aren't needed, and you can simply hold the forg down yourself when needed.
Why some plugs have three prongs?
Most modern plugs have three plugs, this is not because of a technical issue but rather a safety issue. The third prong is used as a way to ground the wire preventing electrical shock especially if you are working with a metal cased object. So to simplify things it is purely a safety pro-caution.
What are the pins that are used for displaying insects?
Just plain old straight pins like you can buy at any sewing or arts and crafts store will work perfectly, might want to get some in various lengths
Why do some plugs have only two pins?
whoops i forgot the answer HA HA HA HA HA HA
Why pins of plug are cutted?
Some pin plugs are mostly seen with three pins. The two pin plugs being flat, equal, and has a hole because this is where electricity flows. The round pin plug is used to absorb more flow of electricity for example computers and laptops have round pin plugs because it needs a lot of electricity, the round pin plug is only cut when using a device that doesn't need to much electricity to work.
What does it mean if your speedmeter doesnt work?
you need a new one or you have some electrical problems... check the spark plugs
What type of plug do they use in Israel?
Three-pronged.Answer:Electrical outlet plugs in Israel have undergone a transition over the years. Mains current is 220 volts and 50 Hz and may be accessed with H plugs with flat or round pins, type C plugs. Some larger appliances like air conditioners use Type M plugs.
Where to buy disc for flicker effect electric fire?
Berry Electrical sells pairs of spinners and pins on their website. I just ordered some for school physics experiments.
What types of plugs are used in houses and what is the voltage and frequency of the household AC electrical service which is supplied?
Your AC electrical service's voltage and frequency, and the types of plugs and sockets you can use, depend on the place where you live in the world.If you want more detailed information please see the Related Link and some Related Questions shown below.
Do you use power plugs on-board air crafts?
Yes, however this varies with different aircraft carriers. Some provide their passengers with electrical outlets for powering electrical devices such as laptops. It's more than likely only available in premium economy, business class and first class. - I travel frequently using JAL
What is the difference between PGA and LGA?
LGA : Land Grid Array <== pins are in the socket, no pins are attached on the CPU, only pads. PGA: Pin Grid Array <== pins are attached on to the socket, the socket has some sort of "holes" that hold the processor
What are some interesting hat pins on the market today?
There is a wide selection of hat pins that are currently on the market today. They range from sports team pins to stamp pins to pins from various national parks across the country.
Why they change the spark plugs?
Why Spark Plugs are ChangedSpark plugs are changed because they wear out. There are three factors affecting the wear of a spark plug:The very high voltage electrical spark actually "wears off" the electrode metal, albeit only a very little each time it fires.The burning fuel, and combustion by products can erode/wear the electrodes.The combustion by products AND lubricating oil residue can build up on the electrodes causing the plugs to misfireThere may be some other reasons which don't come to my mind at the moment.
How do you make pins?
You can make pins by using a pin machine. All you need is a magazine or something to have pictures from and some pins with just plastic!
What is 3 pronged plugs?
Its a plug which contains a pronged earth which is the 3rd prong, some other plugs contain only 2 prongs and a 'scratch earth' which is only slight visible, its basically the same concept only one is more visible.
