resistivity of nichrome wire experiment

I would definitely include more reliable equipment such as digital meters etc. Prediction and ... ... the length of the wire or the diameter / thickness / thiness of the wire or the voltage from ... changing the length of a piece of nichrome wire has on the current flowing through ... Voltmeter 1 x Power supply 1 x Variable resistor 1 x Length of nichrome wire ... ... close or exact to what the total current is. I then calculated the average diameter from the 3 measurements taken to enable me to measure the diameter of the wire as accurately as possible.

Diagram of the circuit used in this experiment List of the apparatus used: – 1- Power pack supply of 4 V 2-A variable resistor 3-A full scale deflection ammeter with a measuring range of 0-1 A 4-A digital voltmeter with a measuring range of 0-5 V 5-P, Q represents terminal blocks. The resistance of a conductor depends on its inherent resistivity (ρ), length (l) and its cross-sectional area (A). IHDR N � �w%m sRGB ��� "�IDATx^�] |M��B"�$�DlMP�'(���S[ې�ji��%)���������*AQK� I���(!� 4��,��������xkޛ�3����޹3g�|�=w�Μ9S�իWzB��#P��W��GH��9 tRu�3U� U�g�� H�uB�TIB�T��B@' U� 1S% �*4���������/YZZ�2\׽Y�fիW�� Another issue that arose due to the usage of the bobs was that it was difficult to measure the length of the wire that was used to complete the loop around the bob. Free Samples and Examples of Essays, Homeworks and any Papers. 2. Resistivity of Nichrome experiment Thread starter ABarrows; Start date Mar 19, 2012; Mar 19, 2012 #1 ABarrows. Nichrome Resistivity. Want to get a price estimate for your Essay? For example, if a 2AWG wire requires a 10mm diameter, most manufacturers will label even a 9.8mm to be 10mm because of their own economic benefits. The temperature of the wires in the circuit needed to be kept constant to prevent the whole circuit from overheating. It would have been ideal for me to have used a digital voltmeter of range 0-2 V but this type of voltmeter was unavailable.

This is because ... Another error could be that the places we put the wires on the metal were not in the same spots. For different sets of data, the length of the Nichrome wire was altered by making only a fraction of the full wire part of the circuit. Precaution was taken to make sure there were no fire hazards due to short-circuit. Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated.

A longer ruler or a measuring tape could be used to avoid these kind of easily avoidable errors. Precaution was taken to make sure that no injury was caused because of electrocution due to careless behavior. Other than that I was pretty much ... errors was. RAW DATA COLLECTION: The resistance of the circuit for different lengths were collected as raw data and are tabulated below: Therefore, using the ‘resistivity’ method, the diameter of the Nichrome wire is identified to be 0.053 ± 0.001cm. Resistance = Voltage / Current ... will take five readings from the Voltmeter and Ammeter. ��ࡱ� > �� u ���� ���� r s t ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� n�# �����cr�ӝ����PNG Planning Plan of the method to be used: – The resistivity of nichrome can be determined using the equation = RA/L Where: R: – Is the resistance of the wire in “ohms” and can be determined using the equation R = V/I where “V” is voltage in volts and “I” is current in amperes. Retrieved from, Is Your Deadline Too Short? spaced). Justification of the equipment range: – Ammeter: – I used a full scale deflection ammeter of current range from 0-1 A because I only wanted to measure small currents passing through the circuit and not large currents however all the digital ammeters that were available had a current range of 0-20 A and there werent any available digital ammeters that had a current range from 0-1 A. I chose to keep the current passing through the circuit constant by passing a small current of 0. In this experiment, the students were given a spool of Nichrome wire to determine its diameter. 2 A. I then recorded the voltage readings from the voltmeter which corresponded to the length of the wire being used.

Another limitation to the procedure of the experiment is the assumption of the electrical resistivity of the Nichrome wire. 2 A throughout the whole experiment. The resistance of a conductor depends on its inherent resistivity (ρ), length (l) and its cross-sectional area (A). Five trials were taken for five different lengths to obtain a reliable, wide range of data. This way, dependence on secondary data is minimized and a higher level of confidence can be displayed in the readings. Essay Example, Investigating the current through a wire Essay Example, How The Length Of A Wire Affects The Resistance,, terms For the life of me I haven't been able to track down why it's a factor of 2 off. After recording the corresponding voltage readings for each length and tabulating them I decided to repeat the whole experiment again another 2 times so that I could take the average voltmeter reading for each length.

Safety Precautions: 1. Another problem was that the wire was often crooked at some places and straightening it could have caused it to crack so they were not completely straightened. Length of the wire: – At the beginning when I did a preliminary experiment I was using crocodile clips instead of terminal blocks to connect the wire to the circuit. 2 A was flowing through the circuit. I started the experiment by taping a meter ruler between the terminal blocks P, Q so that I could measure 100 cm of nichrome wire. Precaution was taken so that the Nichrome wire would not hurt the finger.

The gradient would then give the value for which could then be manipulated to extract the value of d. A simple circuit was set up with the Nichrome wire as the resistor. To determine the cross-sectional area of the wire, the diameter was first determined using a micrometer screw gauge. However, different metals have different values of resistance. Get Your Custom Essay on Nichrome Resistivity Just from $13,9/Page, We will write a custom essay sample on Nichrome Resistivity specifically for you FOR ONLY $16.38 $13.9/page. Where, The resistance is given by the following formula (#1): .

8 aApparatuso Voltmeter o Ammeter ... number of times I do the experiment which would provide a more accurate ... ... voltage) 1 x Voltmeter 1 x Ammeter 5 x wires (with crocodile clips) wire of varied length and thickness First, set up the experiment ... many electrons getting through, as there is twice the current, the resistance must have halved. In this experiment I will be using a metal nichrome wire to show the resistance when the length and width is changed. The results table and methods for the calculations are attached. Variables that I am going to change. Don't Miss a Chance to Connect With Experts. I then left the power pack to rest for a small interval of time before switching it on again to record the next set of readings. 9 V and so the digital voltmeter with a range of 0-5 V was the most ideal one to use. (2019, Dec 05). By clicking "Send Message", you agree to our, Resistivity Of Constantan Wire Experiment, How does the diameter or cross-sectional area of a wire affect its resistance? How about make it original at only $13.9/page? Hi there, would you like to get such a paper?

Using a micrometer screw-gauge I measured the diameter of the wire at 3 different positions along the wire and then calculated its average diameter from the 3 values. 2 A was flowing through the circuit. All the content of this sample reflects her knowledge and personal opinion on Nichrome Resistivity and can be used only as a source of ideas for writing. As it can be seen from the total uncertainty calculation, the experimentally deduced value of the diameter of the Nichrome wire was accurate to a large extent. I started the experiment by taping a meter ruler between the terminal blocks P, Q so that I could measure 100 cm of nichrome wire. 2 A was flowing through the circuit. �겠T �A�mZ���/��R ��J/��9v�I�ƲT�T]�*U�G��������Ⱦ�<7�3����׮]�RUR7*���oii)c]I�e��d��f|��I�&Oq��m���UFF��O�@�jhX��K����k<=kԨ1wG}


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