Define me like one of your French girls
Define Induction
Force applied to an object to create magnetism, without any contact
ex: ferrous materials placed next to other magnetized materials will take on the poles creates by the magnetized material flux lines
I am Iron, I am Nickel, I am Cobalt
Ferrous Material or Ferromagnetic Material
Lodestone or Leading Stone
I am a magnet but need to be demagnetized. Tell me how to do so.
Using heat (Currie temperature)
Tap and align/vibratePlace the magnet in a strong AC line field
This theory dictates that applied force changes all « mini magnets » to align the same way, thus creating poles and therefore creating a magnet
Magnetic Domain Theory
This is the name of Bogdan’s dog
Hershey
Define Declination
The angle between magnetic North and true North
This is the principle which reminds us that Geographical North is Magnetic South, and visa versa
I am Platinum, I am Titanium, I am Chromium
Paramagnetic Material
One of us converts mechanical energy into electrical energy, the other converts electrical energy into mechanical energy. What are we?
Motor: electrical to mechanical
Generator: mechanical to electrical
This theory dictates that electrons spin on their axes as they orbit the nucleus; the spinning motion makes each electron a tiny permanent magnet.
Electron Spin Theory
This is Bogdan’s favourite computer game
Solitaire
Define Reluctance, giving a common example of something that has extremely high reluctance
Resistance to magnetism. Air has an extremely high reluctance
soft iron = low
hard steel = mid
air = high
This material classification is for metals or non-metals which are not able to be magnetized. These are also used as electrical conductors, with the most common being Copper
Diamagnetic Materials
I had swirls on me, so you laminated my core to prevent magnetic loss
Eddy Current
My thumb points North, my pointer finger points North to South, and my middle finger points to the direction of current
Fleming’s Left Hand Theory
This is Bogdan’s middle name
Nicolae
Define Cycle and Define Period
Cycle: distance from 1 point on SIN wave to where is repeats itself (1 full SIN wave)
Period: time it takes, in seconds, to complete a cycle
This is the starting point on a B&H graph. It is also a measure of a material’s ability to become magnetized
Permeability
Define Skin Effect
Frequency gets too high so electrons only use the outer portion of a conductor, due to high resistance
When a magnetic field approaching a conductor induces current flow in a perpendicular motion, it creates a magnetic field that opposes the magnet
Lenz‘s Law
This is what Bogdan says when he answers his work phone
Bogdan Marin Electrical company and friendship
Define Frequency
Number of complete cycles in 1 second
This is a term which refers to the magnetic flux remaining in a material once the magnetizing force is removed
Residual Magnetism
These are the 4 properties of a magnetic core
Very low reluctance
Very high permeability
High resistance to electrical current
Low residual magnetism/Low retentivity
I am the two advantages of AC, and the three advantages of DC
AC voltages are easily stepped down
AC Motors and controls are smaller, simpler, cheaper
DC Required to produce magnetic field for AC
DC Electrochemical processing (batteries, electroplating)
This is the name of the first company Bogdan ever worked for
Anton Electrical Co.