Questions tagged [inductive-charging]
5 questions
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3 answers
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?
anon
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What is the pinout for the 9-pin connector on a 97Wh Dell laptop battery?
I'm working with a 97Wh battery from a Dell laptop, and I'm trying to understand the pinout of its 9-pin connector for troubleshooting and possible repairs. I know the pins are used for power, communication, and monitoring the battery's status, but…
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Can wireless charging become more energy efficient?
I've stumbled upon a few articles saying that wireless charging takes more energy to charge something compared to the cable. Like this one.
Like in the test from the article, it takes 47.33 % more energy.
Why is it? Is there something fundamentally…
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Generation of Electrostatic induction
I need to generate a 500 volt electrostatic charge. How can I do this? I don't have a Van de Graaff generator. What are some practical suggestions?
Basically I want to do experiment in which I need to induce charges on a plate ie one side positive…
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1 answer
Transformers with no load
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 exactly how the back EMF is always there and always…
user37250
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