# Resistivity of constantan wire coursework

Ok doing some physics coursework at the moment where i have to measure the resistivity of constantan anyway, for those who don't know, the resistivity of constantan is 49x10^-8 anyway the formula for those who don't know for resistivity is ra/l so anyway at length of 100cm, with a diameter of 0 . Constantan is a nickel-copper based alloy wire that has a high resistivity and is mainly used for thermocouples and electrical resistance heating it has a constant resistivity over aa wide range of temperature. What should be the resistance of constantan wire over a meter at room temperature if the thickness is 26 i've just done my physics coursework and my reading was 19876 ohms, but my teacher's told me to find out what it should be. Resistivity objective how could you determine the sign of the thermal coefficient of resistivity of the wire using constantan (cu, ni alloy) .

Assuming a constant temperature coefficient of resistivity, what is the maximum percent decrease in the resistance of a constantan wire starting at 006% a wire is drawn through a die, stretching it to four times its original length. Resistance and resistivity learning objectives what is the maximum percent decrease in the resistance of a constantan wire starting at 200ºc 12 a wire is . Because their resistance has a wide range of temperatures where it remains almost constant that’s where constantan gets its name the resistivity / conductivity of metals (and conductive/semi-conductive materials in general) usually depend on tem. A no-frills guide to the practical where you deduce the resistivity of constantan wire i've even included a short introduction to the use of a micrometer sc.

Physics coursework copper, constantan, manganan and nichrome - which is the best conductor this causes a flow of electrons in the wire, more commonly known as a . Scott precision wire constantan alloys are available in solid wire, strip or tape and flexible bunch or strand constructions resistivity at 20°c. Electrical resistivity constantan 490 × 10 −7: 204 × 10 when a metal wire is subjected to electric force applied on its opposite ends, these free . Constantan is a copper–nickel alloy also known as eureka, advance, and ferry it usually consists of 55% copper and 45% nickel [2] its main feature is its resistivity , which is constant over a wide range of temperatures. We got just given our coursework in college and i am utterly clueless on what to do for this i'm supposed to be investigating how changing the length of the wire in a circuit affects its resistance and then calculating the constant resistivity of that wire afterwards.

An investigation into the resistance of a wire free gcse physics coursework essay the variables i will control will be the type of wire (resistivity) and the . Electrical resistivity (ρ) is a measure of a material’s property to oppose the flow of electric current expressed in ohm-meters (ω⋅m). How the length of a wire affects its resistancein my physics coursework i am going to investigate the effect of the length of a wire on its resistance resistance is the measure of how easy it is for current to flow through a wire.

## Resistivity of constantan wire coursework

Constantan® - an alloy of copper and nickel its main feature is that it exhibits constant electrical resistivity over a wide temperature range and has good fatigue life. Главная страница и все самые важные новости форумы компенсации за самостоятельно приобретенные средства реабилитации resistivity of constantan wire coursework — 423067 в этой теме 0 ответов, 1 участник, последнее обновление . Homework help: density of constantan wire jan 7, 2018 #1 richie smash 1 the problem statement, all variables and given/known data but then i realized .

11: assuming a constant temperature coefficient of resistivity, what is the maximum percent decrease in the resistance of a constantan wire starting at 200ºc 12: a wire is drawn through a die, stretching it to four times its original length. A wire's resistance depends on four main factors: resistivity length resistance of constantan wire coursework the wire cross-sectional area temperature of resistance of constantan wire coursework wire i will investigate how the length of the wire affects the resistance. Experiment to measure the resistivity of a wire equipment: 1m of constantan wire of diameter 027 and 056 mm, 1m of nichrome wire of diameter 027 and 056 mm. Physics control assessment calculation of resistivity of constantan wire by different methods, by length being the only variable beingchanged (le.

Constantan is a copper-nickel alloy usually consisting of 55% copper and 45% nickel its main feature is its resistivity which is constant over a wide range of temperatures. Link ---- resistivity of constantan coursework essay writing service essayeruditecom phytochemical analysis of medicinal plants thesis lowering drinking age thesis. To measure the resistivity of constantan a metre-bridge circuit, in which the unknown resistance consists of a length of constantan wire, is connected up as in fig 406 (b).