Solar-powered calculator resting on photovoltaic cells. Photovoltaic cells,the basis of solar energy,are made of a semiconductor material such as silicon. When incident light falls onto these devices a voltage is produced across the surfae. Solar-powered calculators are often also equipped with batteries | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bond, Martin |
Bildgröße: | 3870 px × 4843 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |