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15 Cards in this Set

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  • Back
Permeability?
ability to pass lines of flux
1 line of flux is called?
1 maxwell=1 flow line
What is placed on the end of a magnet?
keeper
What does the term Couloumb mean?
measures quantity 6.28x10-18
+ move decimal to right
- move decima to left.
Ampere (AMP)?
Flow
1 coulomb/sec
Resistance?
opposition to flow
ex) amount of atoms through a wire broken down (Truck Theory)
What is Power measured in?
Watts
What are the Main sources of energy?
Magnetic
Heat
Chemical
Friction
Light
Mechanic
What is a conductor? What is a Insulator?
Movement of electrons
oppose movement of electrons
ex) 5-8 electrons, do not easily move.
What is a ion? How do you know if it is a +ion or a -ion?
1)Charged atom
2)excess of protrons,positive ion
3)excess of electrons negative ion
What is meant by a Electrically balanced atom?
+charge =# of -Charge
Outermost shell of a atom is called?
valence shell, valence electrons
Whats difference b/w electron flow & Conventional flow?
flow of electrons from negative terminal to positive, vice versa.
What is a theromcouple?
loop of two wires made of disimilar metals that are joined at two places.
What are the two types of electricity?
static, current
CURRENT-electrons move through a circuit perform work through mag. field.
STATIC-more of a nuisence,little useful purpose