It is possible that melting plastic in a dishwasher or other appliance can create toxic fumes. It largely depends on the type of plastic which is being melted. The best bet would be to properly ventilate the area and go into another area of the house until the smell is gone.
a wire of high resistance and high melting point
Heating element is the main part of the ironbox which gets heated as current passes through it. We have to use the material for heating element with features such as: 1) high melting point 2) high specific resistance 3) not easily oxidised. (most important point) Hence the alloy NICHROME ( nickel and chromium) is used for heating element because it is not oxidised even at high temperatures.
Element, meaning a heating element and not a natural element. The heating element is made by wrapping 'nichrome' wire around a flat sheet of Mica composite board. This then glows red hot, when mains electricity is applied to it. Nichrome is an alloy of Nickel and chromium. Chosen because it has electrical resistance and can stand repeated heating and cooling without melting.
Phosphorus is a solid chemical element up to 44,2 0C - the melting point of the allotrope white phosphorus. Heating in air lead to oxydation.
It depends upon the element. Mercury is liquid at room temperature, and the melting point of aluminum is much lower than the melting point of iron.
This element is helium with a melting point of -272,20 0C.
Carbon has the highest melting point of any element on the Periodic Table. It's melting point is 3823K
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1). You want the resistance of the heating element to be somewhat more than the resistance of a pure iron one. 2). When the heating element heats up to glowing, you don't want it to melt and fall to the bottom of the toaster in a blob. So you need a substance with a melting temperature higher than that of pure iron.
An electric heating element heats the tip just above the melting temperature of the solder being used.
It doesn't. Melting point is fixed for each substance at a particular pressure. However, very rapid heating can make it difficult to measure the melting point accurately.
There is no element with a melting point of -183 deg C. The nearest element is Argon, with a melting point of -189 deg C.