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Physics
Classical Physics
Electromagnetism
Rise in Voltage across a battery
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[QUOTE="John Park, post: 5708627, member: 616032"] The short answer is, it doesn't matter. All that's important is the voltage difference--unless you connect the circuit to something else. As long as you keep the battery and its circuit in isolation you can call the terminal voltages anything you want, as long as the one is 15 V higher than the other. Picking one to be zero is often convenient. But if you connect the negative pole to ground you've connected it to something that is conventionally agreed to be zero, so then you have to call it zero itself. In practice, grounding the negative pole is probably conventional enough that people automatically call that voltage zero whether it's actually grounded or not. [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Rise in Voltage across a battery
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