A power transmission apparatus includes a driving circuit, a first power transmission coil that is driven by the driving circuit, a second power transmission coil that is arranged outside the first power transmission coil, a third power transmission coil that is arranged inside the first power transmission coil, and a switching circuit that performs connection switching so that the first power transmission coil is connected to either one of the second and third power transmission coils. The power transmission apparatus transmits power to a power reception coil without contact.