4 ms·
I only find them useful for topics I do not understand because they are very complex and abstract. For example the explanation of linking voltage/current/watts
by Polylactic_acid 6y ago
I only find them useful for topics I do not understand because they are very complex and abstract. For example the explanation of linking voltage/current/watts to pipes with flowing water made sense to me because electrons moving through a conductor is too abstract but saying "Voltage is like water pressure, it makes the electricity move faster" makes sense.
- abraae 6y agoI hate the water / electricity analogies because they don't make sense. Voltage is not like water pressure. If you have a high water pressure, water will inexorably be pushed through the pipe to relieve the pressure. That's so regardless of whether the pipe is 1 inch or 1 yard in diameter. Voltage on the other hand means nothing without current. A high voltage on its own - like static electricity - will not move many electrons through the conductor.
- Polylactic_acid 6y agoA high water pressure in a container will also not move. High pressure water moves to low pressure areas just like high voltage moves to low voltage when a path exists. A larger pipe will push more water at a lower pressure like a low resistance wire will move more energy at a lower voltage.
- MiroF 6y ago> Voltage on the other hand means nothing without current How do you propose you have voltage in a conductive medium (pipe) without current? To me, it's not a bad analogy (nevermind you that electrons flow the opposite direction of current) - and I am well-versed in physics.