I am a software engineer and I came across this article which states
If a processor attempts to draw more power than a power supply system can provide (by drawing more current than the system can supply), the result is typically a volt- age drop, which can cause the device to malfunction. Modern processors can vary widely in power consumption with high peak currents; hence, they provide voltage indexing methods that allow the processor to slow down and regulate voltage within a wider margin.
I have read other articles where they explain that you can imagine voltage and current relationship as water hose, where Voltage is equivalent to pressure, water flow is equivalent to current and the diameter of the pipe is equivalent to the thickness of the wire - or resistance. So my question is two fold:
- How does drawing more current leads to voltage drop, because voltage and current are directly related, right?
- We need both high voltage and high current to cause damage, then why the sudden drop in voltage causes any damage to computers. Causing a drop voltage should only mean less force with which the electrons flow, so it should be opposite to causing damage, isn't it?
I am sure I am missing some basic physics logic here. Can you please clear this for me?