This is my reasoning for this affect.
In an inductor the voltage will change 'instantly' however, when the voltage changes it creats a changing magnetic field. This field will inhibit the current from flowing freely. This delay in current is by 90 degrees as shown above.
In a capacitor...
I believe there is only one wave generator on one side of the double slit. As the one wave passes through both slits it creates two waves on the back side. These two waves interact to form the interference pattern.
It's my understanding that Einstein proved that matter is another form of energy with E=mc^2.
And that quarks are made up of, and interact with, smaller subatomic particles.
You have four inputs a,b,c,d.
Run a and b in one or gate. And get output m.
Run c and d in another or gate. And get output n.
Run m and n in a third or gate, and you have your final output z.
To have a working circuit there must be a source and a ground. Current will flow from the source to ground (in standard theory). Now let's say you have a circuit with; a source, a beginning, a spot, an end, and a ground, as shown below.
source (+25V) ----> beginning ----> spot ----> end...