Grab up some of the old AN electronics manuals from WWII and they were teaching Conventional Current. I went through USAF tech school in the mid 60's and some of the instructors (old timers) were trying to muddy up the works by teaching it.
If the guy at the front of the ticket line gets his ticket and moves on, that leaves a hole for the next guy to fill, so on down the line. So the flow of traffic is of people toward the ticket vendor, the flow of holes is in the opposite direction. When an electron moves from one atom to another that leaves a hole that needs to be filled by the next electron in line. So the way I view it, current flow is electron flow. Many picture electrons racing thru the conductor at the speed of light but in reality they move quite slowly. The energy is transferred much like it is if you were to line up all the pool balls in contact and strike the first one in line. The energy is transferred through all of the balls and the only one you see move is the last one. We’re getting way to deep for a discussion about a spark gap here.
Oh and you Waldo, I'm sure you were just being factious, but if not, since the needle is attached to a coil in a fixed magnetic field that its inductively reacting to the flow of a current of electrons that carry a negative charge. A hole is a void, a void moving through a wire does not create a field, it is only there because the little ol’ lectron has move up to the head of the line.
Denny Graham
Sandwich, IL
