PASSIVE & ACTIVE COMPONENT
• Active components are those who delivers or
produce energy or power in the form of a
voltage or current.
• Passive components are those who utilises or
store energy in the form of voltage or current.
Examples of the active components - Diodes,
transistors, SCR, integrated circuits, etc.
examples of the passive components - resistor,
capacitor and inductor.
, Comparison Chart
BASIS ACTIVE PASSIVE
COMPONENTS COMPONENT
Nature of source Active components Passive elements utilizes
deliver power or energy power or energy in the
to the circuit. circuit.
Examples Diodes, Transistors, SCR, Resistor, Capacitor,
Integrated circuits etc. Inductor etc
Function of the Devices which produce Devices which stores
component energy in the form of energy in the form of
voltage or current. voltage or current.
Requirement of They require an external They do not require any
external source source for the external source for the
operations. operations.
,Nature of energy Active Passive
components are components are
energy donor. energy acceptor.
Power Gain They are capable They are incapable
of providing of providing
power gain. power gain.
Flow of current Active Passive
components can components
control the flow of cannot control the
current. flow of the
current.
, Resistor
• Definition: Resistor is an electronics component which
provides the specifies amount of opposition (resistance) to the
flow of current.
It can be a fixed value or a variable resistor.
• Unit: The value of resistor is called resistance. It is denoted by
R and the unit of resistance is Ohms (Ω).
• Symbol:
Fixed Resistor
Variable Resistor
• Active components are those who delivers or
produce energy or power in the form of a
voltage or current.
• Passive components are those who utilises or
store energy in the form of voltage or current.
Examples of the active components - Diodes,
transistors, SCR, integrated circuits, etc.
examples of the passive components - resistor,
capacitor and inductor.
, Comparison Chart
BASIS ACTIVE PASSIVE
COMPONENTS COMPONENT
Nature of source Active components Passive elements utilizes
deliver power or energy power or energy in the
to the circuit. circuit.
Examples Diodes, Transistors, SCR, Resistor, Capacitor,
Integrated circuits etc. Inductor etc
Function of the Devices which produce Devices which stores
component energy in the form of energy in the form of
voltage or current. voltage or current.
Requirement of They require an external They do not require any
external source source for the external source for the
operations. operations.
,Nature of energy Active Passive
components are components are
energy donor. energy acceptor.
Power Gain They are capable They are incapable
of providing of providing
power gain. power gain.
Flow of current Active Passive
components can components
control the flow of cannot control the
current. flow of the
current.
, Resistor
• Definition: Resistor is an electronics component which
provides the specifies amount of opposition (resistance) to the
flow of current.
It can be a fixed value or a variable resistor.
• Unit: The value of resistor is called resistance. It is denoted by
R and the unit of resistance is Ohms (Ω).
• Symbol:
Fixed Resistor
Variable Resistor
