The thick wire has more cross-sectional area than the cross-sectional area of the thin wire for the same length and resistivity of the conductor. Therefore, the resistance of the thick wire is less than the resistance of the thin wire. The more the resistance, the more the power consumption.
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The thick wire has more cross-sectional area than the cross-sectional area of the thin wire for the same length and resistivity of the conductor. Therefore, the resistance of the thick wire is less than the resistance of the thin wire. The more the resistance, the more the power consumption.