Today we worked with some direct current circuits.
We were given two different circuit arrangement and asked what would happen if the switch was turned. Each circuit was developed with a combination of light bulbs, batteries and switches. For the first case, the two right most bulbs were already on, and the middle one was off. When the switch was turned on, we assumed that both right bulbs will stay the same and that the center one will also remain off because since there was 3 volts going up, then it should also has 3 V going down, also since the center has 1.5 potential in the left side, it should also has 1.5V at the right, then there is no change in potential, so the voltage should be the same, for this reason the middle bulb did not turn on. For the second arrangement, the same thing occurred, so both bulb remained the same.
We summarized in a table the brightness of both bulbs and batteries, they have inverse relation of brightness.
We developed different arrangements with resistors in order to calculate current and voltage by using a multimeter. We learnt that in series circuits, we are able to apply the voltage law, which states that the voltage splits equally throughout the resistors. Also that in parallel circuits, we can apply the current law, in which the current splits equally through resistors.
We calculated the resistance of these resistors by looking at the strips of color they hold. The last strip represents the uncertainty, the strip before that one represents exponent base 10, and the rest are the multiplier.
We did resistors problems. Resistors in series add together while resistors in parallel add inversely together, with this idea we solved the above set up.
Professor Mason introduced to us Kirchoff's Law in order to solve some arrangements by using loop rule and current rule.
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