Electrical Trade flashcards, 100 cards
The electric potential difference or electric pressure between two points in a circuit.
The flow rate of charge in a circuit.
The opposition to the flow of electric current
The rate at which work is carried out or energy is transferred.
A form of energy resulting from the existence of charged particles
The voltage across a resistor is directly proportional to the current through it.
Electric current that flows in one direction only
Electric current that reverses its direction at regular intervals
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The electric potential difference or electric pressure between two points in a circuit.
Voltage
The flow rate of charge in a circuit.
Current
The opposition to the flow of electric current
Resistance
The rate at which work is carried out or energy is transferred.
Power
A form of energy resulting from the existence of charged particles
Electricity
The voltage across a resistor is directly proportional to the current through it.
Ohm's Law
Electric current that flows in one direction only
Direct Current (DC)
Electric current that reverses its direction at regular intervals
Alternating Current (AC)
A physical material that allows electrons to flow through it with ease
Conductor
A material whose internal electric charges do not flow freely; very little electric current will flow under the influence of an electric field
Insulator
A static electrical device that transfers electrical energy between two or more circuits through inductive coupling
Transformer
A automatic device for stopping the flow of current in an electric circuit as a safety measure
Circuit breaker
A device that can increase the power of a signal
Amplifier
A substance
Semiconductor
A two-terminal electronic component that stores electrical energy in an electric field
Capacitor
A two-terminal electronic component that conducts current primarily in one direction
Diode
A semiconductor device with three connections, capable of amplification in addition to rectification
Transistor
A passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it
Inductor
A passive two-terminal electrical component that implements electrical resistance as a circuit element
Resistor
A safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level.
Fuse
Device that measures the electric power in watts of any given circuit
Wattmeter
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