The length of a wire and its effect on resistance papershow does the affect resistance resistance resistivity first, the total length of wires will affect amount resistance. The resistance of any wire has been shown to be directly proportional to the length of the wire and inversely proportional to the wire's cross-sectional area the constant of proportionality in this equation is called the material's resistivity and is measured in ohm-meters. To investigate the effect of changing the length and thickness of nichrome wire on its resistance documents similar to prac 8 resistance and heat - using nichrome wire industrialtuff csa tray cables uploaded by prograde awg to metric conversion chart.
For a resistor whose cross sectional area does not vary significantly, its resistance, r, can be calculated as follows:  r = ρl/a measure or use a given value for the length of a piece of wire repeat steps 5 through 13 for your highest resistance nichrome wire when calculating alpha, do not use any data obtained in the room. How the length of a wire affects its resistance in 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. How the length of a wire affects its resistance observation part materials: 1 voltmeter 2 ammeter 3 10ft no22 nichrome r-10ohm/ft wires 4 1 measuring tape 5 sigmatron 251 l battery source 6 2 alligator clips 7 red and black wires 8 markers diagram: attached procedure: 1 start out by collecting all of the listed apparatus needed to carry out the experiment.
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. Resistivity of nichrome depends on temperature please refer nichrome wire data tables which are standard and available from many sources and websites. 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 in my main investigation i will see if this observation applies to my results.
Why nichrome wire 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. Resistance and resistivity openstaxcollege learn about the physics of resistance in a wire change its resistivity, length, and area to see how they affect the wire’s resistance the sizes of the symbols in the equation change along with the diagram of a wire. If a wire of resistance is stretched to 5 times to its original length, what will be the effect on current through wire what is the effect of moisture on a nichrome wire what is the ratio of resistance of two wires having the same length, but the diameter of the first wire is just double that of the second wire.
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 how the length of a wire affects its resistance essay by vickerini, july 2005 download word file, 6 pages. (a) what is the resistance of a nichrome wire at 00°c if its resistance is 10000 0 at 115°c (b) what is the resistance of a carbon rod at 258°c if its resistance is 00160 0 at 00°c nov 17 2013 08:35 pm. The length of a nichrome wire affects its resistance essay a+ pages:2 words:507 this is just a sample to get a unique essay we will write a custom essay sample on the length of a nichrome wire affects its resistance specifically for you for only $1638 $139 investigation on the resistance of nichrome wire how the length of a.
How the length of a wire affects its resistance 1397 words | 6 pages of a wire affects its resistance in my physics coursework i am going to investigate the effect of the length of a wire on its resistance. 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. Nichrome heating woven mesh characteristics heating resistance: high service temperature the woven mesh constructed from nichrome offers service temperature up to 2000of in the usual conditions.
Below is an essay on resistance of a wire from anti essays, your source for research papers, essays, and term paper examples aim: to investigate how changing the length of the wire affects its resistance. Test were the nichrome spring stroke and force applied, the nichrome wire diameter, the free length of the nichrome wire and its corresponding resistance, the tie down cable, the tension on the tie down cable, the. How the length of a wire affects its resistance ruler and place the crocodile clips exactly 100cm apart 3) i will make sure that the voltmeter and ammeter are switched on, and i will then turn on the power pack at a voltage of 2 volts.