Question: What happens when you exceed the power rating of a resistor?
This is a question that I asked myself while I was replacing a resistor in a battery charger. I calculated that the current would exceed the rating of the resistor, but I never saw smoke. So what really happens when you exceed the power rating of a resistor?
I used the scientific method on this project. I have my question, and now I need to form a hypothesis.
History: I own a 14.4V Black and Decker cordless drill with a laser. My wife bought it for me for some reason; probably because I liked it, and she wanted me to build something.
Measuring the voltage drop across the 10Ohm resistor
A little over a year ago, I was given a 14.4V B&D Firestorm drill that quit working. The Firestorm charger quit charging, as verified by the transformer windings giving me an open reading on the “Oh-meter”. To clarify, “‘Oh’, that’s why it isn’t charging.”