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The aim of this investigation is to investigate how the length of a wire affects the resistance of it.
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- Words:
- 1826
- Submitted:
- Tue Sep 16 2003
... Aim: The aim of this investigation is to investigate how the length of a wire affects the resistance of it. Resistance is measured in ohms: George Ohm discovered that the emf of a circuit is directly proportional to the current flowing through the circuit. This means that if you triple one, you triple the other. He also discovered that a circuit sometimes resists the flow of electricity. He called this resistance. He then came up with a rule for working out the resistance of a circuit: V/I = R V - Volts I - Current R - Resistance. Extra Information: The total resistance of resistors in series is the sum of the resistance of each one. Each cm of wire has a particular resistance, if you double the length of wire; it is like having two of the shorter wires in series. If the small resistor represents a short wire and the large resistor is a long
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