When you connect 147 of them together do you have 220 volts? If yes, how long could that device work?
Asker: Karel, 62 years old
Answer
The answer is simultaneously yes and no.
If you place a series of batteries in series, you do indeed get 220 volts, but the batteries themselves have a high internal resistance. You can therefore not use them to supply large currents (eg heating appliances). It can work for appliances with a lower power, but most of those appliances work internally with a lower voltage. The first thing they do is transform the 220 volts down. This is of course not possible with a direct current.
Answered by
Prof Walter Lauriks
Physics Acoustics
Catholic University of Leuven
Old Market 13 3000 Leuven
https://www.kuleuven.be/
Old Market 13 3000 Leuven
https://www.kuleuven.be/
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