renzokuken
- Apr 26, 2011
- 2
- Joined
- Apr 26, 2011
- Messages
- 2
My professor emphasizes that we must power a LED with a resistor "before" it and he draws the example as follows,
5vcc ----/\/\/\/\/----|>----GND
He explicitly said that the LED cannot be before the resistor or else it would not work and draws,
5vcc ----|>----/\/\/\/\/----GND
I was hesitant to ask him why because he expected the class to all know why and made it seem like it was trivial.
From my previous understanding, I thought the order did not matter in a series circuit.
The LED will receive the same voltage drop and current in both configurations.
I want to simply dismiss what my professor emphasized about the importance of the resistor needing to be placed before the resistor.
But I need to be sure, is there ever a time where order matters in a series circuit?
The class I'm taking is a combinational and sequential logic class if it makes any difference.
5vcc ----/\/\/\/\/----|>----GND
He explicitly said that the LED cannot be before the resistor or else it would not work and draws,
5vcc ----|>----/\/\/\/\/----GND
I was hesitant to ask him why because he expected the class to all know why and made it seem like it was trivial.
From my previous understanding, I thought the order did not matter in a series circuit.
The LED will receive the same voltage drop and current in both configurations.
I want to simply dismiss what my professor emphasized about the importance of the resistor needing to be placed before the resistor.
But I need to be sure, is there ever a time where order matters in a series circuit?
The class I'm taking is a combinational and sequential logic class if it makes any difference.