This is a nice lead into Ohms law and the circuitry of life.
V=IR Voltage is equal to Current (I) multiplied by the Resistance in ohm. For any constant voltage, current and resistance will be inversely proportional…I now intend to prove that this is applicable not only to electronics but to the masses.
How to understand a circuit. I struggle to think in terms of the intangible, infinite number of electrons belting round a circuit at break neck speeds so I take a simple analogy, and the world becomes less complicated.
From this point in time…
Battery is now known as a UN Peace keeper Camp.
Current is the number of soldiers passing a point per second
Voltage will be measured in mars bars.
And resistance is merely the size of the swamp to traverse.
Rules of engagement.(ROE)
1 every soldier will be issued with the same number of mars bars
2 every soldier must consume all of the mars bars on the round trip
3 no soldier will deviate from the patrol routes defined on the diagram
4 if there is a junction in the paths it at the soldier's discretion as to which path to take.
In a series (no choice) circuit:
All soldiers are issued the same number of mars bars from the base camp and head out on patrol, They approach the first swamp and consume the number of mars bars they need to get them across. As the current (number of soldiers) is constant the amount of mars bars consumed will vary due to the size of the swamp. V=IR if R goes up so must V, directly proportionate. If more swamps are put into the patrol route, it will decrease inversely proportionate. In short current is a constant but voltage is shared across the resistors. True to life, more swamps that people need to cross the less people will to do so, except for the one or two oddities who scream out "I love swamps" and march happily out.
In a parallel (choices) circuit all soldiers still leave with the same number of mars bars… they travel along and come to a fork in the road. To the left is a path with 50 swamps, on the right a path with 100 swamps. On either path the same number of mars bars will be consumed (roe) , but the number of soldiers taking each path will depend on the number of swamps. Being Lazy in the UN most soldiers take the path with the least number of swamps. The two crazies screaming I love swamps the rest saying screw that I am taking the bridge. If the number of mars bars are the same (V), then the number of soldiers (I) will be inversely proportionate to the Resistance. (R) If R goes up less soldiers will take that path. The Path of Least resistance.
Humans and the Path of Least Resistance.
Everyday we are given choices of what to do with the day. Do we chat with our partner or do we watch TV in silence? Do we work hard, or watch others pick up the slack? Do we reduce the amount of CO2 that we produce each day by riding to work or taking public transport instead of driving? Do we think for ourselves or let the media do it for us? Do we do something proactive about the socio economic unfairness facing the world, or do we just cheer when others finally make the effort? How many projects have you put off because you couldn’t find the time? Do we live our lives to the best of our ability or do we merely take the path of least resistance?