I was so tempted to put this in Introductory Tutorials...
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Need this to go with that:
Schematic symbols echo their physical shape:
Wire - line
Connection - dot (solder blob)
Resistor - ZigZag
Capacitor, two plates separated by space - two vert lines
Battery was pile of alternating disks - sets of long and short lines
Ground - flats narrowing to nothing - dissipating
Diode one direction of flow, arrow and blocking line
Fuse - Wavy line
Schematics "read" by voltage & signal path. Left to right, top to bottom. Max voltage at top, min at bottom, left is input, right is output, components orient towards appropriate voltage rail. Inputs have pins, outputs have sockets. Any exposed pins must be safe when disconnected. Don't mix voltages in enclosures. Keep line voltages out. Use UL/EU/CSA/worldwide approval parts.
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Please include how a capacitor effects AC/DC.
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This diagram raises soooooo many questions, most of them related to why anybody would think a pie chart is a good way to organize a collection of formulas.
A simple rubber membrane across the pipe.
("affects")
Trickier is inductance
You prefer triangles?
Nope. Inductance acts like what it looks like - a COIL SPRING that Amps bounces off of.
While that's not physically correct it is a lucid mnemonic. I saw that exact same diagram back in the day in Army COBET school and remember it to this day! Long live chief SOHCAHTOA and ROY G. BIV
I'd say that this is arguably worse, but that would be a lie. There's nothing to argue about, it's worse.
I started feeling sorry for that Amps character, but on second thought, only a small amount can be lethal, so carry on ...
Only meant that the ac doesn't go around, but it does neatly simplify the behavior. I'm not critisizing, its a great mnemonic! 
I'm not sure but I think it's supposed to be a joke.
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That is how I feel every morning.....
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