one factor that affects the resistance of a wire. Reworded: I am going to investigate if changing the length of a wire changes its resistance. I predict that the longer the wire‚ the more resistance it has. Planning and Preparation Independent Variable: The variable I changed was length (cm). Dependent Variable: The variable I measured was resistance (Ω). Fixed Variables: The variables I kept constant to make it a fair test; were‚ the type of wire (nichrome)‚ the thickness of the wire‚ and
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Factors Affecting Resistance of Pencil Lead Abstract: The investigation involved testing the factors of pencil lead length‚ cross-sectional area‚ temperature and lead type to find out how they affected pencil resistance. The hypothesis was proven as the length (series circuit) graph was exponential and the area (parallel circuit) graph was that of a power function. Higher clay based pencils (2H) had higher resistance to that of higher graphite based pencils (6B)‚ and temperature
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An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
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investigate what affects the resistance of a piece of wire. Wire is made up of atoms. Electric current is a flow of electrons‚ and it is these electrons that collide with the nucleus of the atoms. Every time this happens‚ it causes resistance. The build up of friction is what produces the heat. There are many variables that could affect the resistance of the piece of wire: Length Potential difference Tension Temperature Diameter Shape Material of the wire I have chosen to do
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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. The circuit itself can resist the flow of particles if the wires are either very thin or very long. e.g. The filament across an electric light bulb. How is it measured? The resistance of a length of wire is calculated by measuring
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__________________________ Wire Resistance and Ohm’s Law Go to http://phet.colorado.edu/simulations/sims.php?sim=Ohms_Law and click on Run Now. Wire Resistance and Ohm’s Law Procedure Part I Wire Resistance: open the PhET Simulation Electricity‚ Magnets‚ and Circuits ( Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) _increases________ As wire area (cm2) increases‚ the resistance (Ω) _decreases_________ As wire resistivity (Ωcm) increases‚ the resistance (Ω) _increases____
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FACTORS AFFECTING GROWTH & DEVELOPMENT FACTORS AFFECTING GROWTH & DEVELOPMENT In this assignment is an explanation of genetic‚ biological‚ environmental and socio-economic and lifestyle that effect the development of an individual. Also using the case study of Emily there is explanation on 2 predictable and 2 unpredictable life events that could be affecting her now and the in the future. I will then be discussing the 2 sides to the nature –nurture debate‚ and then I will be evaluating how
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Rome-Italy Vol. 3 No. 3 September 2013 89 Factors Affecting the Study of Accounting in Nigerian Universities Odia‚ J.O. (PhD) Department of Accounting‚ University of Benin‚ Benin City‚ Nigeria odiajames@yahoo.com‚ 234-8056580011 Ogiedu‚ K.O. (PhD) Department of Accounting‚ University of Benin‚ Benin City‚ Nigeria koogiedu@yahoo.com‚ 234-8033600045 Doi:10.5901/jesr.2013.v4n3p89 Abstract This paper examines the factors affecting students ’ career choice of accounting in Nigerian
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did was to find the resistance of a piece if wire. The piece of wire is my dependent variable throughout the investigation. I changed the length of the wire in order to measure the resistance of each length. Plan In this investigation‚ a simple circuit will be set up to read the voltage and current when the length of the wire changes. The length will range from 10cm-80cm with intervals of 10cm. The length of the wire will be changed by moving the crocodile clip across the wire and checking the measurements
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Theory behind my experiment Thickness (cross sectional area of the wire)‚ length‚ and temperature all have some effect on the amount of resistance created in a wire. Another factor is the conductivity of the material we are using. Some metals are just more electrically conductive than others. As long as I use the same type of metal for each wire‚ my experiment will remain fair. Cross Sectional Area The thicker the wire‚ the less resistant it is. This is because there are more electrons in
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