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Asvab Electricial Information

Terms in this set (29)

Ohm's Law (Importance)
The relationship between electric pressure, current strength, and resistance in any circuit.
What type of circuits are connected in most home that use electricity
A parallel circuit is one that has two or more seperate branches for the current to flow
What is the (AC) supplied to homes ordinarily
The alternating current used in most homes completes 60 cycles per second (60 HZ)
Rectifier
Changes alternating surrent (AC) to direct (DC)
Capacitor
Stores electric charge temporarily
Resistor
Supplies a resistance to a circuit
Ground
an extremely large reservoir of electrons that can supply or accept electrons as needed
Transistor
Controls the flow of electric current without the use of a vaccum
Battery
Stores electric charge and can furnish an electric current
Resistance
The opposition of a material to the flow of electricity through it
Transformer
Can increase (Step Up) or Decrease ( Step Down ) the voltage in a circuit
Resistance Unit of Measure
Ohm (1ohm= 1 volt per ampere
Resistance Measuring device
Ohmmeter
Frequency
The number of times that alternating current changes direction per second
Frequency Unit of Measure
Hertz (HZ)
Voltage
The force that affects the rate at which electricity flows through a conductor
Voltage Unit of Measure
Volt
Voltage Measuring Device
Voltmeter
Electric Current
The flow of electric charge through a conducting material
Electric Current Unit of Measure
Ampere (A) 1 ampere
Electric Current Measuring Device
Ammeter
Electric Power
The amount of energy consumed by an electric device
Electric Power Unit of Measure
Watt (W) Watts=Volts x Amps
Electric Power Measuring Device
Electric Meter
Ohm's Law (Formula)
V=IR
V=IR (define the characters)
V-Voltage I- Current strength in amperes R- Resistance
Law of Electric Power ( Formula)
P=VI
P=VI (Define the characters)
P-Power of watts V-voltage I = Current in amperes
Law of Electric Power (Importance)
Calculates the amount of power consumed by an electric or electronic device
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