| 摘要 |
According to one embodiment, an electronic apparatus includes a power supply unit, a current value calculator, and an input power value calculator. The current value calculator is configured to calculate a current value on a power supply cable led out from the power supply unit based on a voltage between two ends of the power supply cable and a resistance value of the power supply cable. The input power value calculator is configured to calculate an input power value of the power supply unit based on the current value on the power supply cable calculated by the current value calculator and an input/output characteristic (efficiency) of the power supply unit.
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