Questions tagged [inductive-charging]

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Transformers with no load [closed]

Could someone please explain why, when there is no secondary load, the applied voltage of the primary roughly equals the back EMF of the primary? Since the primary coil is an inductor I wondered ...
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Efficiency of wireless charging for moving cars

The UK is about to start trials of wireless charging for moving cars. What kind of power transfer efficiency is likely to be achievable in such a system, compared to just plugging in the car directly?...