Restistance of nichrome wire essay
The thickness of nichrome wire and its effect on its resistance - the thickness of nichrome wire and its effect on its resistance introduction a current is the flow of negative electrons around a circuit. In this experiment i will be using a metal nichrome wire to show the resistance when the length and width is changed variables variables that i am going to keep the same variables that i am going to change resistance of wire essay length of wire is fixed to a one meter ruler the first. Coiled nichrome wire (open coil resistance wire elements - infrared and air process/duct heaters) 5, 10 or 30 pound spools of nichrome or kanthal nichrome wire is commonly used as a resistance heater for cutting foam (styrofoam, polyurethane, etc) fabrics, and a variety of other materials. The wire that will be used in the experiment is nichrome 30 wire which has a radius of 0000125m and also nichrome 22 wire, with a radius of 00346mm (346e-5m) ohm’s law deals with the relationship between voltage, current and resistance.
We have chosen nichrome wire because it is able to produce a large resistance even with a relatively small area and is easily measurable, whereas suppose if we use copper wire then we will need a substantially large amount of wire for us to be able to measure the resistance. In this experiment, the students were given a spool of nichrome wire to determine its diameter nichrome, as the name suggests, is an alloy of nickel, chromium and iron the resistance of a conductor depends on its inherent resistivity (ρ), length (l) and its cross-sectional area (a. Nichrome (nicr, nickel-chrome, chrome-nickel – nichrome is a common alloy that is generally referring to any nickel, chromium and sometimes iron and or other elements nichrome is also the “ og ” of the coil building word, in the beginning this stuff was king, but over time kanthal became the dominant wire. Before repeating the process again, twice for all 10 measurements use the formula, resistance = voltage current to find the resistance for each measurement before taking an average of the 3 resistances.
Aim the resistance of a conductor is well known to be dependent upon the material it is made from, its length, diameter, and temperature i am going to be studying the resistance of wire to see how a length of nichrome wire affects the dependent variable, resistance. Nichrome wire has relatively higher resistance levels to prevent the material beneath the wire from oxidizing, which prevents the wire inside from burning or breaking out, according to hm wire international. Resistance of wire essay factors affecting the resistance of wire aim: to investigate the factors that affect the resistance in a conductor the main factors that it does not pass trough as easily in a thin nichrome wire of an electric fire element.
R:- is the resistance of the cable in г¶ohmsгґ and may be determined using the equation r=v/i where г¶vгґ can be voltage in volts and г¶iгґ is current in amperes l:- may be the length of the nichrome wire found in metres. Nichrome (nicr, nickel-chrome, chrome-nickel, etc) is any of various alloys of nickel, chromium, and often iron (and possibly other elements)the most common usage is as resistance wire, although they are also used in some dental restorations (fillings) and in a few other applications. Task to investigate how the resistance of a wire is affected by the length of the wire theory what is resistance resistance is a force which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. Resistance heating wire could be nichrome (80% nickel, 20% chromium), or kanthal (iron-chromium-aluminium), cupronickel (cuni) when the wire is powered on a shorter length (lower resistance. 22 gauge 10 foot long coiled nichrome 60 wire - 25 inch id - clean cut ends - approximate total resistance is 360 ohms - coil is individually packaged in a plastic bag.
We work out the trending price by crunching the data on the product’s sale price over the last 90 days new refers to a brand-new, unused, unopened, undamaged item, while used refers to an item that has been used previously. If the length of nichrome wire is increased by an increment of 10cm starting from 10cm in length, then the graph measuring the electrical resistance of the wires will observe a positive slope with the mathematical function of y = mx that displays the increasing amount of resistance generated. Gcse physics coursework 2016 resistance of a wire free gcse physics coursework essay i tracy huge visual analysis essay of the last supper debts length when the length of the wire is 20cm the gateway science suite biology. Set up a series circuit with the ammeter, switch, nichrome wire resistor (figure 1), light bulb (figure 2) connected in a series and connect the voltmeter in parallel with the nichrome wire or light bulb resistor.
Restistance of nichrome wire essay
Physics investigation of resistance aim: to investigate how the electrical resistance of a wire changes in relationship to ités length prediction: i think that as the length of the wire increases so to will the resistance of it. Question a portion of nichrome wire of radius 260 mm is to be used in winding a heating coil if the coil must draw a current of 990 a when a voltage of 120 v is applied across its ends, find the following. Resistance of a wire in this experiment you will be making measurements of voltage and current for a piece of metal wire, together with the physical dimensions of the wire, from which you will calculate the resistivity of the metal. Nockers engineering products is a specialist wire supplier in south africa which has served manufacturing industries since 1995 in supplying wire material for their many applications.
- Nichrome wire has relatively higher resistance levels to prevent the material beneath the wire from oxidizing, which prevents the wire inside from burning or breaking out, according to hm wire international also referred to as alloy 650, nichrome wire is a resistance alloy that is mostly used for.
- Resistance wire (nichrome wire and fecral wire for example), used as heating material in many industrial production field, whose service life has a significant importance to the normal production while due to various causes, resistance wire burns out or breaks off during heat generation.
The handout on the experiment stated 10m of constantan wire and 10m nichrome wire which is obviously is not 10m and r= resistance) which might comprises the results due to inaccuracyresistance of a wires as well as internal resistance of a source (which actually caused inaccuracy of the final result) were neglected. Physics investigation resistance of wire essay when an electric current passes through thin nichrome or tungsten wire, the electrons cannot flow easily they collide with the atoms in the wire, which vibrate more quickly this causes the wire to warm up if the resistance of the wire is high and the current is large, the wire may get red hot. These results show that as the length of the wire increases, the resistance increases, as well furthermore, if you double the length of the wire, the resistance is roughly doubled for example, when the length of the wire is 20cm the resistance is 314 ohms when the length of the wire is 40cm the resistance is 618 ohms, which is roughly double. I have been asked to consider the factors affecting the resistance of a metal wire resistance opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit resistance would occur when the electrons travelling along the wire collide with the atoms of the [.