We were to guess what would guess what would happen to the hotdog if a voltage were put across it and LED's were placed along it in different orientations.
Our groups prediction was that the LED's would all light up and the hotdog would cook, not noticing that some LEDs were not in line with the long axis of the hotdog.
as one can see, the LED's perpendicular to the long axis of the hotdog did not light. This is because all the points along the circumference of the hotdog have equal voltage. All parts of the hotdog are uniform, so the total resistance from one end of the hotdog to any point increased with a constant slope as distance increases. (hope that made sense).
Reviewing Kirkoffs laws
Prof showing an equivalent circuit.
deriving voltage divider formulas
equivalent resistance problem
LED lights up
measured values : )))
LED lights up
measured values : )))
No comments:
Post a Comment