Basic Electricity Flashcards
What is the function of an electro motor?
To convert electrical energy to kinetic energy
Define specific gravity
The ratio of weight of a given volume of a material in the same volume of pure water.
Check for buoyancy
What are the 5 methods of producing electricity?
- Solar
- Chemical
- Magnetic
- Piezoelectric
- Thermal couple
What is the function of an inverter?
To convert DC to AC
What is the purpose of a circuit protector?
To protect the wires.
Conductor
Define a thermal couple:
2 dissimilar types of metals that produce electricity when heat is applied.
(Constantine & Iron)
What are the 5 components of a circuit?
- Source power
- Conductor
- Protection device
- Switch
- Load
Conductor spins inside the magnetic is a….?
Generator
Magnet spins inside the conductor is a…?
Alternator
What is the specific gravity of a lead-acid battery?
(1.275 - 1.300)
What is conventional theory of electricity?
Electron flows from positive to negative.
+ to -
What is the quantity of electron flow measured in?
Coloumb
What are the 5 factors that determine inductance?
- Type/shape of core
- Amount of turns around core
- Type of conductor
- Size of core
- Amount of power applied to coil
How do you find total CAPACITANCE in a series circuit?
1/C1 + 1/C2 + 1/C3 ….
What is the definition of a battery?
To convert chemical energy to electrical energy
Z=R•R+(Xl-Xc)2
Square root
Formula for impedance
Define a parallel circuit.
Electrons have multiple paths to travel
What is frequency?
Is the # of cycles per second
Define Ohms Law:
E
I = —
R
What are 2 functions of a diode?
- Rectify AC –> DC
2. Electronic check valve
What is the formula for:
X of L?
2 x Pi(3.1416)(f=400hz)L
What is the total resistance of an AC circuit?
Impedance =Z
What is the difference between a:
1) Primary battery
2) Secondary battery
1) primary =
non-rechargeable
2) secondary =
rechargeable
What 3 factors determine
Capacitance?
- Plate Area
- Distance between plate
- Dielectric
Another name for An electromagnet is…?
A relay
What are the 2 functions of a transistor?
1) signal amplifier
2) micro switch
Amplitude is defined as?:
The distance from + peak to - peak in a cycle of a sine wave
