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    Investigating Resistance

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    Investigating Resistance Aim: My Aim is to investigate a factor that affects resistance (how length affects resistance) Method: Equipment list - .Ruler .Movable contact .Power Pack .Crocodile Clips .Ammeter .Volt-Meter .Leads To do the experiment I will have a piece of 100cm wire mounted to a meter long wooden rule. This wire will be connected to a power pack. Then I will get a movable contact and also connect it to the power pack. Also I will connect an ammeter

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    Investigating Resistance of a Wire Aim: To investigate how the resistance of a piece of resistance wire depends on length and to find the length of wire needed to make the required resistance. Prediction: I predict that when you increase the length of the resistance wire the resistance will increase. I am predicting that this will occur because of the preliminary investigation where we found that in a series circuit resistance wires put together produce a higher resistance. This

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    Investigating Resistance of Wire Introduction The purpose of my investigation is to find out how the resistance of resistance wire varies with length. The resistance is measured by how easily the current will flow for a given voltage. The voltage is the push from the battery. Variables The factors which affect the resistance of a circuit are the length, thickness and material. I will be changing the length in my investigation in 10cm intervals. Fair Test To keep the experiment

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    Investigating Resistance of a Wire The aim of this experiment is to find out how the resistance changes as the length of wire changes within the circuit changes. At the end of this investigation I will come to one of five possible conclusions which are: -the resistance increases as the length of wire increases, or -the resistance decreases as the length of wire increases, or -the resistance is constant as the length of wire changes, or -the resistance increases as the length of

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    Investigating Resistance of a Wire INTRODUCTION This investigation is about find the resistance of a wire. Resistance is the slow-down of 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. Resistance is measured in a unit called an ohm (Ω). In 1826, Georg Ohm discovered

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    Investigating Resistance In a Wire Plan In this investigation I will find out how a piece of wire of different material would affect the resistance in a series circuit. To test if this will work I will use certain equipment such as a power supply Box which will supply my energy which I will need. I will also use a voltmeter and an ammeter to test for my resistance. The relationship between Current, Voltage and resistance can be given by the Ohms Law to which is shown by the diagram below:

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    Investigating the Resistance of a Wire Aim: I am going to investigate what factors affect the resistance of a wire. Here are some main factors which may affect the resistance of a wire * Length * Thickness * Temperature * Voltage * Resistance * Material 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

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    Investigating the Resistance of Wires Aim: To investigate how the diameter of a constantan wire will affect its resistance and hence the current flowing through it. Prediction: I predict that the thicker the diameter the less resistance there will be. Reason: In a metal, some of the electrons are free to move between the ions, to form a "sea" of electrons around the positive metal ions. Metals that are good conductors have more "free" electrons and therefore these electrons

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    Investigating Resistance in a Circuit Prediction Resistance makes it harder for the current to flow in a circuit. Resistance occurs when the free electrons collide with the atoms. The greater the resistance is, the smaller the current will be. Resistance is measured in ohms (Ω). To work out the resistance of any given voltage, we must use Ohm's Law. Ohm's Law states that the current through a metallic conductor, like a wire, is proportional to the potential difference (Voltage), when

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    Investigating the Resistance of Wires Introduction ============ Re·sis·tance (r[IMAGE]-z[IMAGE]s[IMAGE]t[IMAGE]ns) n. 1. The capacity of an organism to defend itself against a disease. 2. The capacity of an organism, a tissue, or a cell to withstand the effects of a harmful physical or environmental agent. 3. The opposition of a body or substance to current passing through it, resulting in a change of electrical energy into heat or another form of energy. 4. In psychoanalysis

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