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Investigating into factors that effect the Current along a certain length of wire

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Introduction

Expt: investigating into factors that effect the Current along a certain length of wire Factor Chosen: I have chosen to alter the length of the resistance wire throughout my investigations experiment. It has taken careful thought over a numerous amounts of aspects I could alter, but length came out the better one for me. Prediction: I predict that, as the length of wire gets longer as will the current decrease. I also further predict that, if the length of wire is doubled so will the current halve. Once again I shall predict that in a larger wire width ways there shall be an even larger current. Justification of predictions: A current flows through a length of wire at all times and if there is enough power it should always be the same. However I feel that as the length of wire gets longer it shall take more effort and the current will decrease, as there is a further distance for it to share the current over. Below is an equation that will help me find the current however as there will be a ammeter present. I (Current in Amps) = V (Potential Difference Volts) x R (Resistance in ohms) ...read more.

Middle

0.96 1.14 1.04 0.96 24.00 25 0.86 0.87 1.05 0.93 1.08 24.00 30 0.80 0.81 0.95 0.85 1.17 24.00 35 0.75 0.75 0.85 0.78 1.28 24.00 40 0.73 0.70 0.79 0.74 1.35 24.00 45 0.67 0.64 0.69 0.67 1.50 24.00 50 0.65 0.60 0.63 0.63 1.60 24.00 55 0.62 0.57 0.57 0.59 1.70 24.00 60 0.55 0.53 0.55 0.54 1.84 24.00 65 0.50 0.49 0.50 0.50 2.01 24.00 0 1.11 1.24 1.15 1.17 0.86 32.00 5 0.97 0.89 0.91 0.92 1.08 32.00 10 0.71 0.70 0.71 0.71 1.42 32.00 15 0.58 0.57 0.58 0.58 1.73 32.00 20 0.50 0.48 0.50 0.49 2.03 32.00 25 0.44 0.42 0.44 0.43 2.31 32.00 30 0.39 0.37 0.39 0.38 2.61 32.00 35 0.34 0.33 0.34 0.34 2.97 32.00 40 0.31 0.30 0.31 0.31 3.26 32.00 45 0.28 0.27 0.29 0.28 3.57 32.00 50 0.26 0.25 0.26 0.26 3.90 32.00 55 0.24 0.23 0.24 0.24 4.23 32.00 60 0.22 0.22 0.23 0.22 4.48 32.00 65 0.21 0.20 0.21 0.21 4.84 32.00 My results shall also be shown on graphs on the next page. How the chosen factor affected the current: From looking at my results and at my graphs it is clear to me of how my chosen factor (length) ...read more.

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