How Does the Length of Wire Affect the Resistance?

... Science Coursework How Does the Length of Wire Affect the Resistance? Aim To investigate how the length of a wire can affect the resistance of a wire. Prediction I predict that as the length of Nichrome wire is increased, the resistance also increases because there are more atoms to slow down the current. Introduction As the electrons in an electric current move around a circuit, they bump into atoms in the wire through which they pass. Atoms of different elements impede (hold up) the electrons by different amounts. For example, electrons pass easily through copper wire, but much less easily through nichrome wire. Copper has a lower resistance than nichrome. This is why copper is used for the connecting wires and cables in electrical circuits. When an electric current passes through thin nichrome, the electrons cannot flow easily. They collide with atoms in the wire which vibrate more quickly. This causes the wire to warm up. If

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