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Why is The heating element in a kettle is at the bottom explain why this is best place?
Wiki User
∙ 13y ago
If the heating element was at the top and the kettle was not full, then you would not be able to heat water because the element would not be in the water. Thus the only place for the element is at the bottom.
However, hot water is also less heavy than cold water, this means that heated water rises to the top and having the element at the bottom means that the water being heated is circulated and this is more efficient.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoKettles are meant for heating water. When water is warmed is flows upward creating a current that forced cooler water downward. By putting the element at the bottom the design places it near the cooler water so that this so-called convection current is favoured thus making the kettle much more efficient.
Wiki User
∙ 8y agoThe element needs to be below the water level. If it was at the top, and you poured out half the water, the remaining level would not reach the element. In which case, switching on the kettle without filling to the top, would cause the element to overheat and burn out or trip the fuse.
Wiki User
∙ 6y agoSince warmer materials rise, it is logical and more efficient to place the element at the bottom of the container.
Wiki User
∙ 11y agoThe short answer is, because heat tends to rise. If you apply heat to the top of a column of water, it will only heat the top portion, leaving the bottom section cool.
Wiki User
∙ 11y agoits placed near the bottom because this is where it would be most effective to boil the water, because heat rises it will be able to boil the top as efficient as the bottom of the kettle :)
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Why does the element on the kettle turn black?
the heating element turns black because it heats up all the water xxxx I think this is likely to be because your water supply is acidic (pH less than 7). This can dissolve the element over time. Probably best to replace the kettle with one with a concealed element.
How does a Crofton Electric Water Kettle work?
There is a heating element in the kettle. As the water boils, the inner temperature of the kettle rises. Once the boiling temperature is reached, a small thermostat is triggered which turns the kettle off, so as to not boil continually. This thermostat works optimally with the lid on the kettle fully closed, if the lid is not fully closed, it does not switch the kettle off as quickly.
How does all of a kettle of water boil when it is heated from the bottom?
Kettles have an element at the bottom, which is heated up by the electric current connnected to it. As the current flows through the plug and the connection, the element becomes extremely hot and disperses the heat throughout the water, at this stage you see tiny bubbles rising from the element. After a minute or so, the water reaches boiling point, starts to agitate, and the steam comes out of the spout of the kettle. If you have a whistling kettle, this is when the steam is forced through a small hole, causing the whistling sound the kettle makes when the steam goes through it. Now you are ready to make that cup of tea.
What happens if you put metal in a kettle if it both does and does not touch the metal filament at the bottom of an electric kettle?
A rainbow shoots out of the spout and the kettle takes the form of a unicorn!
Which materials are used in heating elements and why?
Many heating elements use Nichrome 80/20 (80% nickel, 20% chromium). It is an ideal material because of its relatively high resistance. When heated for the first time it forms a protective coating made of of chromium oxide, beneath which the heating element cannot oxidize. The oxide coating prevents the wire inside from burning away or breaking, even if submerged in water, such as inside an electric kettle or large water heater. Usually the element is well insulated and fully embedded into an outer copper housing which is chrome plated to help delay corrosion from the surrounding water which it heats. If you look inside many electric kettles made since 1991 the heating element is not immediately visible because it is bonded onto the underside (i.e. the dry side) of the internal metal base plate. Such hidden elements work very well but have the disadvantage that, when an element burns out it cannot be replaced, so a new kettle has to be bought. However it is still a good system because the parts and labor costs for replacing one of the old types of replaceble heating element are much more than the cost of buying a new kettle.
What material is used to make the kettle heating element?
a kettle is made out of metal
Does cordless kettle mean that the heating element is not in cotact with water?
no. it means that the kettle can be unplugged from the electricity source. the heating source is in touch with water, as it is located inside the kettle :)
Why is the element in a kettle at the bottom?
heat rises....
What will happen if the heating element is near at the top of the kettle?
In that case, it would be less efficient. Hot water rises to the top, mixing the water (if the heating element is at the bottom). When it is at the top, the water won't mix as well, and more heat would be wasted.
Does the wire in the electrical cord of an electric kettle have a higher or lower resistance than the heating element inside the kettle?
The wire in the cord has much lower resistance than the heating element. The heating element is a resistive or resistance heating element. Resistance in the quality of a substance or material that causes it to limit current flow, and it get heated up in the process. The heating element has all but the smallest fraction of the resistance in the circuit, so the heat, that thermal energy that get the water hot, is generated by the resistance of the heating element.
Why is the heating element found at the bottom of the kettle?
Its found at the bottom of the kettle because its uses convection currents to heat it up. The heating element warms up the water at the bottom, and because when water is hot its less dense, so it will rise to the surface, cool, and sink down again to be warmed up. Its a repetitive cycle that will eventually not give the water time to cool down far enough to sink, which is how you get it to boil. Like a stove and a hot air balloon.
Why is nichrome used in the heating element an electric kettle?
someone pls say the answer to this cuz i need it ;-;
Why is the element at the bottom in a electric kettle?
It is not an element... for hard water usually a build up calcium compounds.
What happen to the heating element if lower power supplied to an electric kettle via transformer?
it won't get as hot
What will happen if the heating element is near the top of an electric kettle?
The kettle will be less efficient because it won't be benefitting from the effects of convection currents. It will use considerably more energy.
How water heat in a kettle?
When you put the switch on, the electricity goes thought the wires heating the melt prongs, which heats the kettle and the water. When you put the switch on, the electricity goes thought the wires heating the melt prongs, which heats the kettle and the water.
Does the wire in the electrical cord of an electric have a higher or lower resistance than the Heating element inside the kettle?
The wire in the cord has much lower resistance than the heating element. The heating element is a resistive or resistance heating element. Resistance in the quality of a substance or material that causes it to limit current flow, and it get heated up in the process. The heating element has all but the smallest fraction of the resistance in the circuit, so the heat, that thermal energy that get the water hot, is generated by the resistance of the heating element.
