Student here: technically speaking why did you use the 100 W 2 Ohm resistor to perform the test. Feel free to just share a site or link that has the information plus maybe the math i.e (formula)... I'm just starting on this journey and this might help me practically figure things out so I can conduct different experiments safely
As all of the power supplies were rated at 12v, I chose the 2 Ohm resistor to limit max current at 6 amps. (Ohm's law). If I hadn't used a resistor, this would have been a short circuit and could potentially cause some of the PSUs to fail.
The 100 W rating is the power dissipation of the resistor. For this circuit is 12 V * 6 A = 72 W, so it’s ok to not break the resistor. The 6 A is like the other comment, the current of 12 V in 2 Ohm resistor
I'm trying to prove that some PSUs actually produce a lower current than specified on the label, and some, on the contrary, produce more current failing to limit it (although they are supposed to).
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you should also see is the adaptor maintains the 12v
I would suggest also check input output difference
And I thought how can my 18650 battery can deliver 6-7 amps when I was kid 😅
Student here: technically speaking why did you use the 100 W 2 Ohm resistor to perform the test. Feel free to just share a site or link that has the information plus maybe the math i.e (formula)... I'm just starting on this journey and this might help me practically figure things out so I can conduct different experiments safely
As all of the power supplies were rated at 12v, I chose the 2 Ohm resistor to limit max current at 6 amps. (Ohm's law). If I hadn't used a resistor, this would have been a short circuit and could potentially cause some of the PSUs to fail.
@@RonMattino Thank you
The 100 W rating is the power dissipation of the resistor. For this circuit is 12 V * 6 A = 72 W, so it’s ok to not break the resistor. The 6 A is like the other comment, the current of 12 V in 2 Ohm resistor
What are you proving.. if you overload a power supply it is not working within spec.. shocking discover
I'm trying to prove that some PSUs actually produce a lower current than specified on the label, and some, on the contrary, produce more current failing to limit it (although they are supposed to).
@@RonMattino but than make the load somewhat in the range.. maybe use a variable load and see what the limit is.. now you just overload most of them