Basic Electronic Components- Their
Function and breadboarding application
OBJECTIVES
• Understand electronic circuit, circuit
symbol, and breadboarding;
• Construct a combination of Series- Parallel
electronics circuit using a breadboard;
• Value the importance of breadboarding.
Light Emitting Diode (LED)
• A particular type of diode that
convert electrical energy into light.
• It is a two- lead semiconductor light
source. It is a p-n junction diode,
which emits light when activated.
When a suitable voltage is applied to
the leads, electrons are able to
recombine with electron holes within
the device, releasing energy in the
form of protons.
Resistor
• An electrical component that limits
or regulates the flow of electrical
current in an electronic circuit.
• It is a two terminal device have
one connection on each of its side.
Two common resistor symbols are
shown in given figure; one is in
American style (zig zag line) and
other is international style.
Light Dependent resistor (LDR)
• A resistor whose resistance
decreases
with
increasing
incident light intensity; they are
used in many consumer products
to determine the intensity of
light.
Switch
• They are often used as
on or off switches on
the
main
power
supplies for electronic
devices.
Transistor
•A
transistor
is
a
semiconductor
device
used to amplify and
switch electronic signals
and electrical power.
Battery
• It has more than a cell
and is used for the same
purpose. The
smaller
terminal is negative and
the larger one is positive
Abbreviated as ‘b’.
Breadboard
• Also called a proto-board,
is a reusable platform for
temporarily
built
electronic circuits.
SCALE
4
DESCRIPTION
EXCELLENT
POINTS
16-20
CRITERIA
ACCURACY
WORKMANSHIP
3
GOOD
11-15
2
FAIR
6-10
1
POOR
5- BELOW
PROPER
HANDLING OF THE
COMPONENTS
SPEED
1
2
3
4
Direction: Fill in the blanks by underlining the word
that best completes the statement.
a. _______________ a two- lead semiconductor light source. It is a p-n
junction diode, which emits light when activated. (LED/LCD)
b. _______________ a semiconductor device used to amplify and switch
electronic signals and electrical power. (AMLIFIER/ TRANSISTOR)
c. _______________ is a resistor whose resistance decreases with increasing
incident light intensity. (LED/LDR)
d. _______________ is an electronic component that oppose the flow of
current. (RESISTOR/TRANSISTOR)
e. _______________ is a reusable platform for temporarily built electronic
circuits. (BREADBOARD/PHOTOBOARD)
Assignment:
In ¼ sheet of paper answer the
following question.
Give an example of circuit problem.
References: Book; Simple Electronics, fully
illustrated by; Enriquez, Gantalao