Hi, I kind of struggle with this question for a long time.
What happens when I put two batteries with different voltage rating in parallel?
Such as the circuit I have attached.
I saw one thread that ask about this in the forum, but the answer given is quite simple, saying that the higher voltage battery will charge the lower voltage battery and the lower voltage battery might explode. I am looking for more detailed answers - how the electrons flows in this case? what is the voltage across RL? how is the current distributed at node 1 and node 2? For the simplicity let's just assume the neither battery will explode.
If the voltage across RL is 6 volts, according by many website, why is that?
Also, according to the "All About Circuits Volume1 DC: Chapter 9: Thermocouples section" (http://www.allaboutcircuits.com/vol_1/chpt_9/5.html) the last several paragraphs, applications use thermocouples in the measurement of average temperature between several locations by connecting several thermocouples in parallel with each other. The reason is "The millivolt signal produced by each thermocouple will average out at the parallel junction point."
So why in the case of thermocouples the voltage average out? Why not in the case of batteries?
and please don't just reply saying connecting batteries with different voltages in parallel is dangerous.
Thanks.
What happens when I put two batteries with different voltage rating in parallel?
Such as the circuit I have attached.
I saw one thread that ask about this in the forum, but the answer given is quite simple, saying that the higher voltage battery will charge the lower voltage battery and the lower voltage battery might explode. I am looking for more detailed answers - how the electrons flows in this case? what is the voltage across RL? how is the current distributed at node 1 and node 2? For the simplicity let's just assume the neither battery will explode.
If the voltage across RL is 6 volts, according by many website, why is that?
Also, according to the "All About Circuits Volume1 DC: Chapter 9: Thermocouples section" (http://www.allaboutcircuits.com/vol_1/chpt_9/5.html) the last several paragraphs, applications use thermocouples in the measurement of average temperature between several locations by connecting several thermocouples in parallel with each other. The reason is "The millivolt signal produced by each thermocouple will average out at the parallel junction point."
So why in the case of thermocouples the voltage average out? Why not in the case of batteries?
and please don't just reply saying connecting batteries with different voltages in parallel is dangerous.
Thanks.
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