Creation Implementation Aim: To begin installing our electrical circuit into our house Keywords: Current, Voltage, Circuit, Parallel This lesson we began installing the negative or input wire into our house. As mentioned in the last blog, our use of LEDs means that we are unable to use the supplied transformer, due to unusable amounts of voltage. The LEDs require 3V to function and the transformer supplies from 2V to 12V, increasing by 2 each time, eg: 2, 4, 6, 8, 10, 12. In order to fix this issue, we will instead use a 3V battery pack as our power source, allowing our LEDs to function properly. We ran the wires along the walls of the house so that they both, do not hang down into any rooms and it creates a straight, neatly set out circuit that is easy to interact with and modify. Currently, we are using the switch shown in this image. It uses two split pins that have been punctured through a piece of cardboard. The pins are then split on the bottom, poking out of the side of the cardboard, in order to create input and output terminals. Finally, a paperclip is attached to one of the split pins and it is bent up. This means that when it is pushed down to touch the opposite split pin, electricity can flow. Note that on the underside of the switch, there is a piece of sticky tape separating the two split pins. This is to deny the flow of electrons directly from one split pin to the other, which would nullify the effect of the switch. One problem that we will have to address in the future is the issue with our supply of wire. Each group is supplied with two lights, 1.5m of wire and any other little items that are required to construct the house. (Paper clips, masking tape, etc.) Although we were originally attempting to construct our input wire and conserve as much wire as possible, after constructing only half of our wire, we have used a large portion, approx. 60%-75%, of our wire. This may mean that we have to bring in our own wire from home, which should not be a problem, however we were hoping to complete the circuit with just the wire that had been supplied to us.
Lesson Summary: Constructed the negative/input half of our electrical circuit Discussed the advantages and disadvantages of using a battery pack over the transformer. Decided on the placement of electrical components within the house
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