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Heat is caused by a current trying to flow through a resistance. What you have is probably a loose connection on one of your screw terminals of the plug creating a higher than normal resistance. Take a screw driver and tighten the screws and see if that makes a difference.

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Q: Why is the live pin getting hot on a three pin plug?
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What are the designations of a three-prong plug?

On a three prong plug there will be a neutral blade, a "hot" blade and a ground blade. The neutral blade is wider that the "hot" blade. In North America the ground blade is "U" shaped.


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In most cases, a plug socket is not live until all the prongs are inserted. This is because the third prong, called the grounding prong, is responsible for connecting the appliance to the earth. Until all three prongs are in, the circuit is not complete and the socket remains inactive.


Is the wide part on a plug positive?

What you are refering to is a polarized plug. The wide connector forces the proper orientation in the outlet. This is so that the hot and neutral connectors in the plug, match the hot and neutral (cold) prongs on the plug. This forces a switch to operate on the "live" or hot wire. If a switch interrupted the flow of electricity in the neutral wire, the appliance would still shut off but the plug itself will remain "hot" whcih is a shock hazard. No, the wide blade on a plug is the neutral connection.


What if the electrical plug on the iron is getting hot?

If it is a molded plug (cap) end and it is getting hot then there is a loose connection inside the cap. There is no way to repair it except by getting rid of it. Cut the cap off and replace is with a new one. There are different kinds at DIY stores. Just make sure that the one that you buy has the right amount of terminal points as the iron's cord has. If the iron's cord has three wires, black white and green then buy a cap with three blades. Don't cut off the green wire on the cord and replace the cap with a two blade unit, the green wire is there to keep you safe.


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There are three ways to melt rock to form lavas. You can use decompression, add volatiles, or conduction. All you need to do is use these strategies to get the rock to its melting point.


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They don't all live at the south pole - so yes.