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How does the length of a wire affect its resistance?
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Physics Coursework
How does the length of a wire affect its resistance?
Plan
In a circuit, there are two main factors - voltage and current. The combination of these two is described as resistance.
Voltage could be described as how hard the electricity is being pushed around the circuit, and is measured as the amount of energy transferred between charges as they pass between two points - it is measured in volts, using a voltmeter in series.
Current could be seen as how much electricity is moving around the circuit at a time, and is measured in amps using an ammeter in series.
Resistance is an inverse quality - how difficult it is for the electricity to move through the circuit, or how hard the resistor is working to stop the electricity. It is measured in ohms (?), either using an ohmmeter, or calculated using this formula:
R = V/I (V=voltage, I=current)
Many factors can affect resistance, including thickness, length and type of wire, as well as number of components in the circuit.
In this experiment, I am trying to find out how the
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