Our website is a unique platform where students can share their papers in a matter of giving an example of the work to be done. Resistance = Resistivity x Length of the Wire Cross Section Area of Wire So the resistivity of my wire will be the gradient of my graph. Interviews (structured, open) Length on each reel is approximate. View Lab Report - Lab report 4 from PHYSICS 250 at Raritan Valley Community College.
AN EXPERIMENT TO FIND THE RESISTIVITY OF A WIRE In this experiment, I am going to find out the relationship between Resistivity, Resisistance, cross sectional area and length of the wire, which in this case is Constantan. Piece of metal made up of Atoms Since my early childhood, I have always had passionate and curious about the inner mechanisms of Bonded-Wire Strain Gauges and Introduction of Sensor This paper discusses various sub topics related to the Bonded-Wire Strain Gauges as one of the types of sensors that are used in the industrial processes. When electrons travel through wires or other external circuits, they travel in a zigzag pattern that results in a collision between the electrons and the ions in the conductor, and this is known as resistance. calculate the cross-sectional area of the wire. The electrons are arranged in orbits called shells. For example, when the length of the wire is 20cm the resistance is 3.14 ohms; when the length of the wire is 40cm the resistance is 6.18 ohms, which is roughly double. 5428 Words 22 Pages. This is 100% legal. (“Measuring the electrical resistivity of a wire Lab Report”, n.d.) Close to this is the person who invented the sensor, the year of invention and the features as at the time of invention.
The paper then discusses the application of the sensor I the industrial setting as well as the principle behind the mechanism of work. ρ= l A where G is the gradient. The resistivity of manganin is 48 × 10–8 Ω m (at 20 °C). 40.6 (b). Keep track by making a table of values for length of wire and corresponding resistance. 123Helpme.com. When the valence electron becomes free it leaves behind an atom that has a positive charge. Also you should remember, that this work was alredy submitted once by a student who originally wrote it. }un�Q(r��z�%� 3.
(Measuring the Electrical Resistivity of a Wire Lab Report) 5428 Words 22 Pages. << /Length 5 0 R /Filter /FlateDecode >> Each atom is made up of a nucleus that has a certain number of protons and neutrons with an equal numbers of electrons in orbit. The atom will always try to get an electron back into the valence orbit to become normal or balanced again. When the valence electron in any atom gains sufficient energy from some outside force, it can break away from the parent atom and become what is called a free electron. If you can visualize a piece of copper wire with billions of atoms and each one of them losing an electron and all the electrons jumping to other atoms, you will begin to see what current is.Copyright © 2000-2020. This is the one fact that you should remember and try to visualize when working with electrical circuits. Click to open the e-catalogue page >> Some sources of energy are heat, light, magnetic fields and a voltage source. So I can find the Resisitivity of Constantan. “Measuring the Electrical Resistivity of a Wire Lab Report”, n.d. https://studentshare.org/physics/1698244-measuring-the-electrical-resistivity-of-a-wire. All matter is made up of Atoms. I will then plot the graph ofSo the resistivity of my wire will be the gradient of my graph. All rights reserved. material resistivity / Ω m constantan 4.7 × 10-7 nichrome 1.5 × 10-6 copper 1.7 × 10-8 stainless steel 9.6 × 10-7 Possible extension work Different thickness of wire of the same material can be investigated to see if the resistivity is the same. This is the correspondent circuit of a transmission line. Giancoli, Douglas C., Physics, 4th Ed, Prentice Hall, (1995). I will find the material that this wire is made out of by working out its resistivity. Describe any The resistivity will be the gradient multiplied by the cross-sectional area of the wire. Questionnaires '���d����Bc�W���,�"ۊ��)��3���,։+�a�8��fi���ڎ�) ��j��-Cĭ������W�s�%�mn�|P�m�&=8)���'v�
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EXPERIMENT 16 RESISTANCE AND RESISTIVITY By Eric Pernini, Anthony Sibaja, … CRC Handbook of Chemistry and Physics, 64th ed. The outer shell of any atom is called the valence shell. 1 Calculate an average value for the diameter d of the wire.
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