In conventional flow chart, we draw a circuit with LED like this:
We put resistor here to limit the current and to protect the LED. But in reality, the current actually flows from the negative side of the battery, so in fact the electrons flow through the LED first and then the resistor. My question is why this still works? To me, it makes more sense that the electrons should pass the resistor first, so the current will be limited. In this chart, however, the electrons flow through the LED first. Why the LED won't burn up? Thanks.
We put resistor here to limit the current and to protect the LED. But in reality, the current actually flows from the negative side of the battery, so in fact the electrons flow through the LED first and then the resistor. My question is why this still works? To me, it makes more sense that the electrons should pass the resistor first, so the current will be limited. In this chart, however, the electrons flow through the LED first. Why the LED won't burn up? Thanks.