Today I figured out how to wire a circuit in Series Parallel I found it was possible by first wiring  2 bulbs in parallel and then add in the series bulb. so 3 bulbs are running 

3 bulbs running in series parallel

Close up of wiring in series parallel. Power is drawn from right of image and

returns back by bottom left black wire

I also completed the workbook and found that in this layout the bulb that is wired in series uses most of the voltage and glows brightly, then when it reaches the parallel bulbs it gets split in evenly and glows dimly between the two bulbs.
I also found with the calculations, that they are a lot easier then I first thought as long as you have  the correct data and know the correct formula for what you are working out. 


This completes the Practice on Electrical circuits.


Logic Probe Construction 
Also today I began Work on building a Logic Probe that will be used in the Fuel systems practical.
I completed the first step in building a probe, which was soldering a 1K ohm resistor and a red LED to the black wire and another 1K ohm resistor and a green LED to a red wire.

Showing LEDs, Resistors and Wires soldered together

The part where I had to be most careful was getting the LEDs around the correct way, as there is a positive and negative terminal on them. you can tell this by the length of the "legs" 

Picture showing length  of legs  Longer one or the anode is +
 and shorter one or (k)cathode is -  

 on the red wire the shorter leg is soldered and on the black wire the longer leg is soldered to the resistor.


On Tuesday next week I will complete the probe.