- 1 What size wire do I need for my heater?
- 2 Can copper wire be used as a heating element?
- 3 Which metal is best for heating element?
- 4 Can tungsten wire be used as heating element?
- 5 How far can I run 12 2 wire?
- 6 What happens to copper wire when heated?
- 7 What is the purpose of heating element?
- 8 Which material can be used as heating element?
- 9 Which heat factor has maximum power?
- 10 What are the causes of failure of heating element?
- 11 Why Nichrome wire is not used in bulb?
- 12 Why is tungsten not used in heating elements?
- 13 Why is Nichrome wire used as a heating element?
What size wire do I need for my heater?
Multiply the value for current by 125 percent to determine the size of the breaker you need for the heater. A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a 15-amp breaker would be too small, you need a breaker with the next highest rating, which is 20 amps.
Can copper wire be used as a heating element?
Yes you can use copper wire as a heating element. The generation of heat is dependent of things (according to joul’s law, power transfer to heat is ) one you have to increase the current and other you have to increase the resistance.
Which metal is best for heating element?
Nichrome is best suitable and ideal material for making heating element. It is having comparatively high resistance. When the heating element is heated first time, chromium of alloy react with oxygen of atmosphere and form a layer of chromium oxide on outer surface of heating element.
Can tungsten wire be used as heating element?
For example, tungsten filaments are used as heating elements for electrical furnaces. Tungsten has a very high melting point (6,152 degrees Fahrenheit), which means that it can withstand high heat for long periods of time. Because of this heat resistance, tungsten is ideal for use in a furnace.
How far can I run 12 2 wire?
The total circuit would be about 60 -70 feet in length. It would only be supplying about 5 outlets and one light. It would be a light load, running small things, no heaters or med/large equipment. #12 provides reasonable performance up to about 100′ with general loads like you describe.
What happens to copper wire when heated?
When copper is heated, it decomposes to form copper oxide and carbon dioxide. It is an endothermic reaction, which means that it absorbs heat. When heated, copper is easily bent or molded into shapes. When copper is heated, the many small crystals of metal grow into each other and form fewer, larger crystals.
What is the purpose of heating element?
What is a heating element? A heating element converts electrical energy into heat through the process of resistive (otherwise known as Joule heating). The electric current passing through the element encounters resistance, which produces heat.
Which material can be used as heating element?
Nichrome: Most resistance wire heating elements usually use nichrome 80/20 (80% Nickel, 20% Chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.
Which heat factor has maximum power?
Right Answer is: D Resistance heating is based on I2R effect and highly resistive in nature that’s why it has maximum pf.
What are the causes of failure of heating element?
ii) Due to oxidization: At high temperature material gets oxidized which may cause failure of heating element. iii) Due to corrosion: If heating element is directly exposed to chemical fumes then there is possibility of rusting of heating element which causes failure of heating element.
Why Nichrome wire is not used in bulb?
Nichrome wire, an alloy of nickel and chromium, and often iron (or other elements) is good for making heaters but not lamps. At rated voltages, nichrome will glow orange-red, not the bright white that is needed for illumination. If you increase the voltage to get a brighter color, the nichrome will burn open (melt.)
Why is tungsten not used in heating elements?
Tungsten metal reacts with oxygen with air at high temperature and oxidized. So tungsten metal wire is not used in a heater. Tungsten oxidizes rapidly in air at high temperatures. Tungsten has a much higher melting point, but it needs an inert atmosphere or a vacuum, such as inside an incandescent lamp.
Why is Nichrome wire used as a heating element?
Note: A nichrome wire is used as a heating element because of its high melting point and high resistivity (low conductivity) also. Having a high melting does not allow the nichrome wire to melt easily when a large amount of heat is produced. Hence, nichrome has high resistivity and low conductivity.