I'm new to Arduino and consequently, to circuits. I've been reading Arduino Robotics by Warren and this was a circuit present in the book.
From what Warren has said, electricity in the circuit travels from the negative pole to the positive, BUT to imagine it as going the other way for simplicity. So, looking at this circuit... it seems useless to have the resistor placed after the LED, based on the + --> - model. Wouldn't the LED turn on before going through the resistor, rendering the resistor useless?
Sorry if this seems like a basic concept, I'm entirely new to this.