A radiographic capturing apparatus includes the following. A wireless communication circuit or a wireless communication device establishes wireless communication with an external unit. A power supply circuit feeds electrical power to the wireless communication circuit or the wireless communication device and is switchable between a low-load mode and a high-load mode. The power supply circuit is able to feed a current having a larger value in the high-load mode than in the low-load mode. A power supply efficiency of the power supply circuit in the high-load mode is lower than that in the low-load mode when a current having a small value as in the low-load mode is fed in the high-load mode. A switcher switches a load mode of the power supply circuit based on the detected or obtained load state. A built-in power supply feeds electrical power to the power supply circuit.
