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The term "earth pin" is generally a European term but in the US, the ground prong (same thing) is required to be "first make/last break." It must the the first terminal to make connection in the receptacle and the last terminal to break connection. The thickness is probably because the ground prong is often removed, either on purpose or by misuse.
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Should be current in earth pin yes or no and why?
No, because electrical systems use earth as a reference of zero potential, however lots of electrical appliances use the earth as a reference point and dump a small amount of current to earth all the time in order to limit power spikes which can damage micro electronics, as long as the earth pin has good contact with the main earth terminal in an electrical installation this is not a problem. some larger appliances like water heaters and electric oven also leak current to earth while they are in use. This is another reason why there should always be a good contact with the main earth terminal.
Why does a pin attracted by a magnet move upwards and not downwards towards the earth's gravitational pull?
because, the strength of the metal magnet is stronger then that of the earths gravity when held at a close distance.
A small pin contains 0.0178 mol of iron how many atoms of iron are in the pin?
10715600000000000000000
Why does rubbing a pin with a magnet make it magnetised?
by this procces you r-arrenge the atoms of the pin by a special shape that makes it a magnet
Is the pin oak leaf simple or compound?
Simple(:
Which blade is the longest in a 3 pin plug?
The ground blade is the longest in a three blade plug.
What pin on a power plug is the earth pin?
The third pin usually on the bottom is the pin that goes to the ground/earth.See Sources and Links below.AnswerIt really depends on what type you plug you are using. From your use of the word. 'earth' (rather than 'ground'), you may be referring to the plugs used in the UK, Ireland, and places like Malta, Cyprus, and the Gulf States? If so, then the earth pin is the longest of the three, and located at the top of the plug. Some European plugs don't use an earth pin at all -in Germany, for example, they use a pair of contacts located in the moulded recesses located on each side of the plug.
Which wire is not present in a 2 pin plug?
The earth wire.
What pin on the plug to the AC outlet is the ground pin and what is its purpose?
The ground pin or earth pin is the uppermost pin on your plug. It's purpose is to provide a safety barrier between you and the supply in the event of an overload or in case of an accident.
Is it okay to use an adapter to change a three pin plug into a two pin plug?
No, it is not ok, it is potentially very dangerous because the two-wire cable has no earth with it. The earth wire is an important safety component that comes with a three-pin plug. An exception can be made for certain low-power appliances that have double insulation. This includes TV sets, radios, and table lights provided the mounting is plastic and not metal. These appliances are commonly sold with a twin-wire cable but often with a three-pin plug on the end of it. The three-pin plug in this case often has a plastic 'earth' pin and it is safe to replace it with a two-pin plug.
Why third pin is plastic in 3 pin plug?
Double-insulated electrical appliances, such as electric drills, only require two connections -a line and a neutral- to the supply. An earth (ground) connection is unnecessary. In the UK, all electric socket outlets have shutters that blank off the line and neutral terminals when there is no plug inserted. These shutters are operated by the earth pin of the plug. As double-insulated appliances don't require an earth connection, a plastic earth pin is moulded into the plug in order to open the socket shutters in place of a normal metallic earth pin.
What is the third prong in plug for?
On a British plug it is the earth pin connected to the earth wire. This is safety feature to stop electric shock
When use a 3-pin mains plug what is the biggest pin for?
On a UK three pin plug the two smaller prongs are Live (brown) and Neutral (blue). The Larger pin is for the Earth wire. This can prevent you getting an electric shock
When 3 pin plug is used?
To fit a 3-pin socket. The three pins are live, neutral and earth, which must not be confused.
In three pin switch why earth pin is made bigger in size?
The earth pin is longer in a three pin plug so that when being plugged it it makes contact to ground the equipmemt before the other pins make the equipment live. If the equipment has a fault, the earth circuit is already in place to deal with it.
Can I plug my 2 prong Christmas light cord into a 3 prong extension cord?
UK answer only: Yes but you need a three-pin to two-pin adaptor. Alternatively fit a three-pin plug to the light and leave the earth pin disconnected. This can only be done if the lamp already has a two-wire cable fitted to it, anything else is potentially dangerous.
In a plug why is the top pin always the longest?
The longer pin on a standard household plug is the GROUND, sometimes called a "U" ground because with some manufacturers, the pin is bent/rolled like a "U". However, there are many other type plugs which have a GROUND PIN but are not shaped like a "U". It is slightly longer than the other pins because it must make contact first (before the power pins) as a safety measure. If there was a fault/defect in the device being plugged in, grounding the device before it receives power will make sure the circuit blows the fuse and does not energize the metal frame of the device which could lead to a shock.
