Therefore, between copper and manganese copper wires of the same length and resistance, thick copper wire. Note: The electrical resistance of a material also depends on physical conditions such as temperature and pressure, but not its shape and size.

Why is manganese copper thicker than copper?

Two wires, one copper wire and the other manganese copper wire, are of equal length and resistance. Which wire is thicker?in view of The resistivity of copper is lower than that of manganese copper.

Which is thicker copper or nichrome?

Nichrome is thicker than copper Because its resistivity is higher than copper. Alloys are used for a given purpose because of their high resistivity and suitably low melting point. Nichrome is thicker than copper because it has a higher resistivity than copper.

Which thickness is aluminum wire or copper wire?

Description copper wire is 2.16 times heavier than aluminum wire. Due to the same length and resistance value, the mass of aluminum wire is smaller than that of copper wire, so aluminum wire is preferred for overhead power cables.

Which is the longer copper or manganese copper?

Two copper wires of equal length, one is copper and the other is copper manganese copper have the same resistance. …Since ρ is larger for manganese than copper, manganese wire is thicker than copper wire.

Two copper wires of equal length, one copper wire and the other manganese copper wire, have the same resistance.which line

39 related questions found

Why not use copper for potentiometer wires?

because copper wire Has high temperature coefficient of resistance and low resistivity, not suitable for potentiometers. As a result, even small changes in temperature can cause large changes in resistance, affecting the experimental environment.

Why are copper and aluminum wires always used for electricity?

Copper and aluminum are most commonly used as electrical conductors in cables because Their low resistance and excellent electrical conductivity. These metals are ductile and relatively resistant to corrosion, so they can be easily shaped into wires and won’t degrade over time.

Why are copper and aluminum wires commonly used?

Copper and aluminum are good conductor of electricity They also have low resistivity. So they are usually used for power transmission. They have very low resistance and allow current to flow through them easily. Therefore, they are used to make wires for power transmission.

Why use copper and aluminum for power transmission?

Copper and aluminum contain a lot of free electrons. These free electrons can move easily in the conductor. …so copper and aluminum are good conductor of electricity And provide low resistance to the flow of current. Therefore, copper or aluminum is used for power transmission.

Why are the connecting wires in the bridge made of thick copper wire?

The connections between the resistors in the meter bridge are done using thick copper wire. Copper has very low resistivity. The resistivity is further reduced by using thick copper wire. Thick copper wire has a larger area and the wire resistance is negligible.

Is it correct that the resistivity of copper changes with temperature?

The change in resistivity of copper with temperature is parabola nature.

What is manganese copper used for?

Use manganese aluminum foil and wire in the manufacture of resistors, especially ammeter shunts because of their near-zero temperature coefficient of resistance and long-term stability. From 1901 to 1990, several Manganin resistors became the legal standard for the US ohm.

Why do we use copper and aluminum wires to carry electricity and why not iron?

We use copper and aluminum wires to carry current because They have low resistivity and are good electrical conductors.

What is the difference between copper wire and aluminum wire?

The main difference between aluminum cable and copper cable is Current Carrying Capacity and Impedance. Aluminum cables have lower current carrying capacity and greater impedance than equivalent copper conductors. … the impedance must be carefully evaluated when selecting the correct size of aluminium cable.

Why is copper used for power transmission lines?

One) Copper and aluminum have very low resistivity, so current can easily pass through them. Therefore, copper and aluminum wires are often used for power transmission.

Why use aluminum to make wires?

Aluminum provides better conductivity to weight ratio than copper, and is therefore also used for power grid wiring, including overhead transmission lines and local distribution lines, as well as power wiring for some aircraft. … it has cost and weight advantages over copper wire.

Why not use copper aluminum containers to store kimchi?

Pickles like lemons have acid, aluminum is a metal, and the metal reacts with the acid to produce hydrogen gas, it is not recommended to store lemon pickles in aluminum utensils as it will destroy the kimchi and will create holes in the container.

Why are the cables made of aluminum?

Aluminum is Used for overhead cables as it is cheap and almost as conductive as copper.

Does copper have high resistance?

copper has lower resistivity And is a better conductor of electricity than iron. … copper is a better conductor than iron, which means that current can pass through copper more easily (with less resistance). This is an inherent property of the material.

Which action increases the resistance of the copper wire?

increase the length of the wire Will increase the resistance of the wire.

What material has the highest resistance?

The material with the greatest resistance is silver. After silver, copper and gold are the materials with the highest resistance.

Why not use copper?

copper has Low resistivity and high temperature coefficient of resistance So we don’t use it in the potentiometer.