Flashcards in Chaper 4-Electricity Deck (64)
The number of electrons flowing in an electric circuit would describe the
_____ is the study of stationary electric charges
The amount of amperage transmitted in a direct current, series circuit of 50 volts and 5 ohms would be
Which would offer the greatest resistance to a series circuit?
A? Short, thick conductor
B? Long, thin conductor
What material would be the least effective as an electrical insulator
Copper, Wood, or Glass
List three ways to electrify and object
In a direct current circuit, how many volts would be required to transit 5 Amos through resistances of 3 ohms, 5 ohms, and 8 ohms wired in series?
What would express voltage in a circuit?
Amps X resistance
The equation for the "Power Rule"?
P=I or W=VA
Four Electrostatic Laws
A. Likes repel, opposites attract
B. Electric Charge Distrubution
C. Coulombs Law
D. Electric Charge Concentration
What is the equation for "Power Loss"?
P=I2 X R
In space, flux lines from a magnet travel from:
North to South
What is the unit of electrical resistance?
Wha is he unit of potential difference?
Contact confers the _____ charge
Induction corners the _____ charge
Ground potential equals ______
Primary function of X-Ray unit=convert _____ energy into electromagnetic energy of x-ray beam.
Converts chemical to electrical energy
Converts electrical to mechanical energy
Converts to electrical to heat/thermal energy
Converts mechanical to electrical energy
1. Are free to travel from outermost shell of an atom to the next.
2. Possesses what charge?
1. Fixed inside nucleus of atom and are NOT free to move.
2. Possesses what the of charge?
Occurs when an object becomes charged by removal or addition of electrons
Contact confers the __1__ charge.
Induction confers the __2__ charge.
Earth behaves as a huge reservoir for stray electrical charges=
Electrostatic force is directly proportional to product of charges and inversely proportional to square of distance between them
Most charges reside on __1__ surface and constituted along the __2__ of surface