I was playing around with a computer power supply and some resistors and noticed that raising the ohmage decreased the amperage but the voltage was unaffected. Does this mean that voltage is a constant in V=IR. How can you change the voltage with resistors and leave current unaffected.
The voltage was constant because the power supply maintained the voltage (that's its job). In a similar way, if you make a constant current source and pass that current through a variable resistor, then varying the resistance value will change the voltage while the current remains the same.