0
Nichrome wire is not used for the oxidase test because it can introduce contaminants that interfere with the test results. The presence of nickel and chromium in the wire can lead to false positives or negatives by reacting with the reagents used in the oxidase test. Instead, sterile wooden or platinum inoculating loops are preferred as they do not react with the test chemicals and minimize the risk of contamination.
What else can I help you with?
Does copper conduct electricity better than nichrome?
yes it does -------------------- You might say they are polar-opposites. Copper is specifically used where low resistance is desired. NiChrome is often used as a resistance wire. For example, model rocket engines utilize nichrome wire to ignite the fuel because the resistant wire will glow red-hot when electric power is applied.
What is it necessary to have a hot nicrome wire in the gas jar?
A hot nichrome wire in a gas jar is necessary for conducting the auto-ignition test of a gas. It is used to ignite the gas in the jar to see if it will burn by itself. If the gas ignites, it indicates that the gas is flammable.
Why is it necessary to clean the platinum wire between flame tests?
because platinum wire loops dont impart any color of it own.... NICHROME wire are also used..
Why does nichrome wire get heated in an electric circuit whereas nichrome does?
Nichrome wire gets heated in an electric circuit due to its high electrical resistance. When an electric current passes through the nichrome wire, the resistance converts electrical energy into thermal energy, causing the wire to heat up. This property makes nichrome suitable for applications like heating elements in toasters and hair dryers. In contrast, materials with low resistance do not heat up significantly under the same conditions, as they allow electricity to flow with minimal energy loss.
What element combined with nickel it forms nichrome wire which is used in toasters and other devices where high elctrical resistances is desire to produce heat?
Chromium is the element that combined with nickel to form nichrome wire. The addition of chromium increases the wire's electrical resistivity, making it ideal for applications where high heat generation is needed, such as in toasters.
What element is used in electroplating and nichrome wire?
The element commonly used in electroplating is nickel. Nichrome wire is made of a nickel-chromium alloy.
What happens to a nichrome wire when a current flows through it?
When a current flows through a nichrome wire, the wire heats up due to resistance. This increase in temperature causes the wire to glow and emit heat, which is why nichrome wire is often used in heating elements and appliances.
What has more resistance a nichrome wire or a copper wire?
A nichrome wire has more resistance than a copper wire. This is because nichrome is made of a nickel-chromium alloy that has higher resistivity compared to copper, which allows it to impede the flow of electricity more effectively.
How do you use NiChrome wire?
NiChrome wire is commonly used as a heating element in applications such as electric ovens, toasters, and hair dryers. To use NiChrome wire, you can wrap it around a ceramic or heat-resistant material to create a heating coil. When electricity passes through the wire, it heats up quickly and generates heat.
What wire is used for an immersion heater?
An immersion electric heater usually uses nichrome wire as the heating element. Nichrome is highly resistive, and by applying a voltage, we can get it pretty hot. Nichrome is used as the heating element in toasters and on electric range elements as well as lots of other places.
Does copper conduct electricity better than nichrome?
yes it does -------------------- You might say they are polar-opposites. Copper is specifically used where low resistance is desired. NiChrome is often used as a resistance wire. For example, model rocket engines utilize nichrome wire to ignite the fuel because the resistant wire will glow red-hot when electric power is applied.
Difference between copper wire and nichrome wire?
Copper wire is a good conductor of electricity and is commonly used in electrical applications due to its low resistance. Nichrome wire, on the other hand, is a nickel-chromium alloy with high resistance to heat and corrosion, making it suitable for applications like heating elements in appliances and industrial processes. Nichrome wire is used when resistance to high temperatures is required, while copper wire is used for its conductivity.
Why is it important to use a clean nichrome wire for each flame test?
The wire simply holds the sample in the flame. Nichrome wire has such a high melting point that the relatively low temperature of the burning flame won't drive any of the Ni or Cr atoms into the ionic state and interfere with the color of the ions in the compound which is adhering to the wire.
What is the solute and solvent of the nichrome wire?
In the context of a nichrome wire, the solute would be any impurities or contaminants present on the surface of the wire, while the solvent would be the material used to clean or remove these impurities, such as a solvent like alcohol or a cleaning solution.
What metal is used to make wire?
Nichrome! It's an alloy of nickel and chromium, and sometimes iron.
What metal or material is used in the rear window defroster?
A High resistance wire, such as NiChrome; the wire heats up when amperage flows through.
What is it necessary to have a hot nicrome wire in the gas jar?
A hot nichrome wire in a gas jar is necessary for conducting the auto-ignition test of a gas. It is used to ignite the gas in the jar to see if it will burn by itself. If the gas ignites, it indicates that the gas is flammable.
