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The question is actually wrong, they can both have the same resistance if configured differently, the real question should be which has a higher resistivity which is the electrical resistance found in a standard amount of each material. In this case Manganin has a higher resistivity than copper.
What else can I help you with?
Why the standard resistance coil are made of manganin or nicrom?
Standard resistance coils are made of manganin or nichrome due to their stable and predictable resistive properties. Manganin has a low temperature coefficient of resistance, which minimizes changes in resistance with temperature fluctuations, making it ideal for precise measurements. Nichrome, on the other hand, offers good durability and resistance to oxidation, ensuring long-term stability and reliability in various conditions. Both materials help maintain accuracy in electrical measurements and are less affected by environmental factors.
Which of the material is used for the swamping resistance that is connected in series with the working coil of a voltmeter?
A swamping resistor is usually manufactured from the metal alloy manganin (trade name), or other alloy with similar resistance/temperature characteristics -i.e. practically zero temperature coefficient of resistance. In other words, its resistance will remain more-or-less constant over a wide range of temperature variation.
What metals are used for precision resistors?
Precision resistors typically use metals such as nickel, copper, and manganin due to their stable resistance characteristics and low temperature coefficients. Additionally, alloys like nickel-chrome and nickel-iron are commonly employed for their excellent stability and resistance to corrosion. These materials ensure that the resistors maintain accuracy and reliability over a range of temperatures and conditions.
How the resistance of conducting material vary with temperature?
Well, there's typically two types of materials-Those with positive temperature coefficient and those with negative temperature coefficient. Positive temperature coefficient are those whose resistance increases as temperature increases. Negative temperature cofficient are those whose resistance decrease when the temperature increase. There are however some alloys such as Manganin& Constantan whose resistance is not affected by temperature
Can a copper wire be used as a variable resistor in a circuit?
Because copper is a very good conductor, it isn't used for making the main body of a resistor. The body must be made of high resistance metals, such as nickel and chrome alloys. Copper is only used for making the connecting leads of a resistor.
Does aluminum have lower resistance than copper?
No, aluminum has a higher resistance than copper.
What copper wire would have the highest resistance?
A thicker copper wire will have higher resistance as it will offer more opposition to the flow of electrons compared to a thinner wire. Additionally, a longer copper wire will have higher resistance compared to a shorter wire due to increased distance for the electrons to travel. Finally, a copper wire with impurities or defects will have higher resistance than a pure copper wire.
Why the standard resistance coil are made of manganin or nicrom?
Standard resistance coils are made of manganin or nichrome due to their stable and predictable resistive properties. Manganin has a low temperature coefficient of resistance, which minimizes changes in resistance with temperature fluctuations, making it ideal for precise measurements. Nichrome, on the other hand, offers good durability and resistance to oxidation, ensuring long-term stability and reliability in various conditions. Both materials help maintain accuracy in electrical measurements and are less affected by environmental factors.
What material has the lowest resistance plastic copper or wood?
Copper has the lowest resistance among plastic, copper, and wood materials. Copper is an excellent conductor of electricity compared to plastic and wood, which have higher resistance due to their insulating properties.
Why are alloys constantan and Manganin used to make standard resistors?
Constantan and Manganin have low temperature coefficients of resistance, meaning their resistance remains relatively stable over a wide range of temperatures. This makes them ideal for use in standard resistors where a consistent and precise resistance value is required. Additionally, both alloys have high resistivity, which allows for the creation of resistors with higher resistance values in a compact size.
Which of the material is used for the swamping resistance that is connected in series with the working coil of a voltmeter?
A swamping resistor is usually manufactured from the metal alloy manganin (trade name), or other alloy with similar resistance/temperature characteristics -i.e. practically zero temperature coefficient of resistance. In other words, its resistance will remain more-or-less constant over a wide range of temperature variation.
What Name the metals which offers higher resistance to the passage of electricity then copper?
Metals that offer higher resistance to the passage of electricity than copper include tungsten, nickel, and iron. These metals have higher resistivity compared to copper, making them less efficient conductors. While copper is often used for electrical wiring due to its excellent conductivity, these other metals may be utilized in specific applications where their resistance properties are advantageous.
What has the lowest resistance copper wire or iron wire?
Copper wire. .wikipedia.org/wiki/Electrical_resistivity_and_conductivity
Name a metal which offers higher resistance to the passage of electricity than copper?
It appears that Plutonium has the lowest conductivity (highest resistance) of all the metals, at 106 /Ohm*cm. This information comes from the link below.
Why is copper wire not used in potentiometer?
Copper wire is not used in potentiometers because copper is highly conductive and would not provide enough resistance for the potentiometer to function properly. Instead, materials with higher resistance, such as nichrome or a graphite-based material, are used to create the variable resistance needed in a potentiometer.
What metals are used for precision resistors?
Precision resistors typically use metals such as nickel, copper, and manganin due to their stable resistance characteristics and low temperature coefficients. Additionally, alloys like nickel-chrome and nickel-iron are commonly employed for their excellent stability and resistance to corrosion. These materials ensure that the resistors maintain accuracy and reliability over a range of temperatures and conditions.
What are factors that affect resistance of electricity?
Factors that affect resistance of electricity include the type of material the wire is made of (e.g. copper vs. aluminum), the length of the wire (longer wires have higher resistance), and the cross-sectional area of the wire (thicker wires have lower resistance). Temperature also affects resistance, with higher temperatures typically leading to higher resistance.
