An orbital solar-powered scientific satellite is equipped with a high-performance photovoltaic array.
The photovoltaic array converts radiant solar energy into useful electrical energy to power the satellite's scientific instruments.
This photovoltaic array has an efficiency rating of 18.5%.
Calculate the useful energy transferred by the photovoltaic array when 6.4 × 105 J of solar radiant energy is supplied.
Use the equation:
efficiency=(useful energy transferred by the device)(total energy supplied to the device)×100% \text{efficiency} = \frac{(\text{useful energy transferred by the device})}{(\text{total energy supplied to the device})} \times 100\% efficiency=(total energy supplied to the device)(useful energy transferred by the device)×100%