Basic Electrical Engineering Flashcards
is an interconnection of electrical elements.
electric circuit
can deliver a non-zero average power indefinitely.
Active circuit elements
There are four types of active circuit element, and all of them are termed an
ideal source. They are:
Independent voltage source
Independent current source
Dependent voltage source
Dependent current source
supply a
constant voltage that does not depend on any other quantity within the circuit.
Independent voltage source
supply a
constant current that does not depend on any other quantity within the circuit
Independent current source
is a voltage
source whose value depends on a voltage or a current of an element
elsewhere in the network.
Dependent voltage source
is a current
source whose value depends on a voltage or a current of an element
elsewhere in the network.
Dependent current source
cannot deliver a non-zero average power
indefinitely.
Passive circuit elements
is an electrical component that limits or regulates the
flow of electrical current in an electronic circuit.
Resistor
– An inductor is a passive element designed to store energy in its
magnetic field. It consists of a coil of conducting wire.
Inductor
A capacitor is a passive element designed to store energy in its electric field. It consists of two or more conducting plates separated by an insulator (or dielectric).
Capacitor
it is an electrical property of the atomic particles of which
matter consists, measured in coulombs (C).
Charge
unit of electrical charge which is equivalent to 6.25 x 1018
electrons or protons. Named after the French physicist, Charles A.
Coulomb
Coulomb (C)
unit of charge flow equal to one coulomb of charge
pass a point in one second.
Electric Current (A)
unit of potential difference, which is equal to one joule of work
done per one coulomb of charge.
Volt (V)
the capability of doing work. Any charge has the capability of
doing work by moving another charge either by attraction or repulsion.
Potential
practical unit of resistance.
Ohm (Ω)
a measure of the material’s ability to conduct electric
current. It is equal to the reciprocal of resistance.
Conductance
unit of conductance.
Siemens (formerly mho)
an instrument used for measuring electric potential difference
between two points in an electric circuit.
Voltmeter
is a measuring instrument used to measure
the current in a circuit.
Ammeter or ampere meter
an instrument for measuring electric power (or the supply rate
of electrical energy) in watts of any given circuit.
Wattmeter
