Investigating Parallel Circuits Aim: To construct parallel circuits and illustrate their respective diagrams. Keywords: Parallel Circuit, Amperes, Volts, Ohms In this lesson, we constructed parallel circuits and measured the amps and volts at different points in the circuit. Both circuits followed a similar design, however they were modified according to the position of the ammeter or voltmeter. Evident below is an electrical diagram that illustrates the positioning of the ammeter. There were a total of three positions, the first in the first loop, the second in the furthest loop and the last on the common wire. When a total of 12V was input into the circuit a total of 0.5A was measured in each of the loops and 1A in the common wire. This is because the current has to divide itself amongst all of the possible conductor paths, in this case two, before meeting up again at the end. This meant that each loop got half the total current, at 0.5A, and the common wire got the full current at 1A. The second circuit was similar to the first, however the ammeters were replaced with voltmeters and parallel circuits were added where necessary. This can be illustrated below and the findings of the voltmeter were not at all similar to the findings of the ammeter. In a parallel circuit the current is split amongst all paths, however, due to the electrons not having to flow through each component consecutively, the volts remained constant at 12V. Lesson Summary:
Constructed parallel circuits Measured the volts and amps at different points in the circuits. Outlined the difference between a parallel circuit and a series circuit when it comes to current and voltage.
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