For our first week in Electrical we worked on circuit boards

1/ With the circuit boards we made a Parallel and Series circuit using a 12v power supply and two identical light bulbs for each circuit and of couse a fuse and switch

2/ Using a Multimeter we then tested Voltage, Resistance and Amperage and compared the diffrence in circuits.
Some of the reading we got was:
36.3 ohms resistance in bulb one and two.
Series circuit with one bulb was using 4.4 Watts

3/ We noticed in the Parallel circuit each bulb was recciving a full 12v from the power supply but in the Series circuit each bulb was only receiving 6v.

4/ This ment the bulbs in the Parallel circuit were a lot brighter compared to the series dull bulbs.

After taking some Amperage readings we notcied in the Parallel circuit Amps slpit in half and Amperage in the Series circuit stayed the same through out. We measured 0.51Amps through out our series circuit with two bulbs connected.

Some other important readings that we took note off was Voltage drop across diffrent points.
The switch in the circuit used .008V
We did this by talking a Voltage reading accross the switch, so negative on the Voltmeter went before the switch and the positive went after the swtich so we could see how many Volts was being used up at the switch.



The Safety gear we had to have was overalls and steel caps boots.