The resistance of a wire or other conductor depends upon the following:

• The length of the conductor (the longer the wire, the more resistance).
• The cross-sectional area of the conductor (the thinner, the more resistance).
• The properties of the material (for metals, the fewer the number of free electrons, the more resistance).
• The temperature of the conductor (for metals, the warmer, the more resistance; for carbon the cooler, the more resistance).