I've looked at a dead power supply and see transistors, ICs, an optocoupler, etc and have come across what the board says are resistors[ R<#>]. Resistors that I've come across are the typical 3/4/5 band DC ones. I'm guessing these are high voltage resistors though I don't know the real term for them.
Resistor 1 looks like a relay but with "0.18ohm", so it's a resistor. Resistor 2 looks like a resistor but with none of the bands (which I guess comes with the territory of high voltage resistors).
The question I'd like to ask is are these actually resistors? And if so, what is the right terminology for these? Furthermore, what are the differences between the two? I tried testing them out with a multimeter and got really weird values.
1: while holding the two leads for resistor 1 and testing the resistance, I get 0.3ohms. When I put it on the table and measure it, I get 1ohm].
2: while holding the two leads for resistor 2, I get 0.4ohms. When I put it on the table and measure it, I get 0.9ohms.] 3: When I test for continuity, I get a beep for both resistors.
At this point, I'm terribly confused and am thinking I've been testing resistance wrong, or my understanding of resistance is wrong (or even both). Or am I testing high-voltage resistors wrongly?
Can someone point out if I've done something wrong?