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# Physics Coursework - Resistance of a wire?

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These measurements are then applied to this formula:. It is also relevant to know of Ohm's Law, which states that the current through a metallic conductor e. This means that the resistance of a metallic conductor is constant providing that the temperature also remains constant.

Furthermore, the resistance of a metal increases as its temperature increases. This is because at higher temperatures, the particles of the conductor are moving around more quickly, thus increasing the likelihood of collisions with the free electrons. The longer the wire, the higher the resistance. This is because the longer the wire, the more times the free electrons will collide with other free electrons, the particles making up the metal, and any impurities in the metal.

Therefore, more energy is going to be lost in these collisions as heat. Furthermore, doubling the length of the wire will result in double the resistance. This is because by doubling the length of the wire one is also doubling the collisions that will occur, thus doubling the amount of energy lost in these collisions.

Incase you didn't know electricity flows along the "skin" of the conductor. So when you increase conductor size the resistance for a length of wire goes down. Just a little something that might help you. Related Questions Physics Coursework - Resistance of a wire?

Physics coursework - resistance of a wire graph? Resistance - Physics Coursework? Physics coursework - Resistance? Resistance in wire coursework? I got a wire that is hanging near the ground.? What is the process of producing an electrical current by moving a magnet in and out of a coil of wire? With your lab partners, prepare a data sheet and summary of this experiment.

For example if a 10 ohm resistor is required for an experiment , it is. Measures the diameter of the wire using a micrometer without help , repeating the nbsp; Physics controlled assessment — OCR of wires of different thicknesses. This idea individually should use the information to address the issues on the stimulus sheet. Notes to help teachers and technicians with this controlled Teachers are advised to try out the experiment prior to candidates undertaking the task.

In fact , a few minutes into the experiment , you might find that quot;none of the energy. There is a resistance to the flow of an electric current through most conductors. The resistance in a wire increases as: The length of the wire nbsp; Resistance — The Physics Classroom and loads of the external circuit encounters resistance. Resistance is the hindrance to the flow of charge. Physics amp; Electricity Science Activity Exploratorium heats the wire.

The length of a wire affects its resistance , which determines how much current flows in the wire and how hot the nbsp; 4EM Wheatstone Bridge: Resistance and Resistivity by means of the Slide Wire Wheatstone Bridge; to study the resis- employed in Experiment 2EM, it is not widely used for the following reasons: Is Copper the Best Metal Conductor?

Science Project in ohms, L is the length of the wire in meters, A is the In this experiment you will be able to find the resistivity and conductivity of The ammeter will help you measure the current that flows through the circuit,.

Does Electricity Move Better through Thick Wires or Thin Ones electricity move from one The thin wire will conduct electricity, but there is more electrical resistance.

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Apr 19,  · An investigation into the resistance of a wire. Free GCSE physics coursework books-wrfd.tks:

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Nov 21,  · Resistance Wire Coursework Help Sheet. An Investigation Into the Resistance of a Wire – GCSE Physics I will investigate how the length of the wire affects the resistance. I have done a preliminary experiment to help me decide the best way to do my nbsp;.