Friday, October 17, 2014

Lab 15 -> Various Circuits and short error analysis, Configurations of 2 bulbs 2 batteris for the brightest shine*, Capacitor resistance with uncertainty,

Useful Equations simply shown

2nd useful equations
 Various circuit schematics
#1
#1 Video

Explaination of why middle one not lit
 Various Circuits
Demo of different circuit schematics.
#1 Two bulbs light and the third no light. Predicted switch closed and bulbs having different brightness due to parallel and series lightness which series connected light bulbs would light up brighter than the parallel connected light bulb.
However, the result was the third in the middle stayed unlit and b/c the potential difference between the junctions were zero.  Up and down cancels as shown above.
#2 Vid
#2 Video new removal one bulb around same brightness
The error for this one is not distinct enough for the eye to detect and there is not enough light sensitive apparatus to make sure the intensity of light is constant b/c the geometry of the circuit could also be giving misleading results.
#2

 #2 , Both bulbs were lit and the switch was originally open. Prediction that the third light bulb would dim the 2 light bulbs even though an extra battery is added b/c the junction is zero in the new circuit added if pole were to be closed.
However, the result is nothing happened b/c the potential being the same from the left and right side and they are still being powered by the same batteries b/c the new battery is added a wrong way that makes junction point zero.
Error for this one is when closing the 2nd pole, the two seemed dimmed a tiny bit which could be the geometry of the set up not perfectly reflecting the diagram as the two junction point from the new circuit should not be effecting the two bulb.

Configurations of 2 bulbs 2 batteris for the brightest shine*
Result: Series and parallel of bat. bulb gives brightest configuration.



Testing circuitry with multimeter

one of medium configuration with "perfect wires". (same brightness)

4 configuration with more through testing with "perfect wire"


Resistor clipped in half.


Measuring resistance

Resistor in parallel.


Useful Equations

Solved the Resistor's resistance along with uncertainty.
The uncertainty is then compared to the manufacturer's standard which the range of experimental value matches with manufacturer standard of +/- 10%.











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