This document provides information about terminating and connecting electrical wiring and electronic circuits. It begins with learning objectives for the lesson, which are to plan and prepare wiring/circuits for termination and connection, perform the terminations and connections, and test the terminated and connected wiring/circuits. It then lists objectives for students to select proper tools, prepare wiring/circuits correctly according to instructions, and follow safety procedures. The document continues with explanations of electrical theory, including direct current, alternating current, and Ohm's law. It identifies components of a simple circuit such as power sources, fuses, wires, switches, and loads. Tasks and examples are provided to demonstrate the concepts.

1. BRIAN G. MAGAN
ICT-CSS TEACHER
Computer System
Servicing

2. CHECKING OF ATTENDANCE

3. TERMINATING AND CONNECTING
ELECTRICAL WIRING AND
ELECTRONICS CIRCUIT
(TCEW)
BRIAN G. MAGAN
ICT-CSS TEACHER
Computer SystemServicing

4. LO1. Plan and prepare for termination and connection
of electrical wiring and electronic circuits.
LO2. Terminate and connect electrical wiring and
electronic circuits.
LO3. Test Termination and connection of electrical
wiring and /electronic circuit.
BRIAN G. MAGAN
ICT-CSS TEACHER
Computer SystemServicing

5. Objective: at the end of this lesson,
students must be able to:
 Select appropriate tools and equipment according
to task requirements
 Prepare electrical wiring/electronics circuits correctly
for connecting/terminating in accordance with
instruction and work site procedures.
 Observe safety procedures in using tools and use
appropriate personal protective equipment at all times

6. Electrical Theory
Direct Current or DC is the first type of current
because it was easy to produce. This type of current
always flows in one direction.
 Batteries are common sources of direct current.

7. Electrical Theory
Alternating Current or AC is the solution to the
problem of DC. AC allows the flow of current in two
directions.
 Common sources of AC are found in our AC
outlet (Typically, 220 volts, in the Philippines).

9. Electrical Theory
OHM’S LAW AND POWER LAW
Ohm’s law states that, for a constant current, the
current in a circuit is directly proportional to the
total voltage acting in the circuit and inversely
proportional to the total resistance of the circuit.

10. Electrical Theory
OHM’S LAW AND POWER LAW
where:
E – EMF in Volts
R – Resistance
I – Current in Amperes

11. Electrical Theory
OHM’S LAW AND POWER LAW
E
X
A
M
P
L
E

12. Electrical Theory
OHM’S LAW AND POWER LAW
E
X
A
M
P
L
E
Given: P = IE
Required:
I = ?
P = ?
Solution:
P = 1 x 25
P = 25W
E = 25V
R = 25 Ω

13. Electrical Theory
OHM’S LAW AND POWER LAW
E
X
A
M
P
L
E
Given:
E = 25V
R = 25 Ω
Required:
I = ?
P = ?
Solution:
I = 25 / 25
I = 1A

14. Components of a Simple Circuit
 AC/DC source
 Equipment that will operate on either an AC or DC
power source
 Battery – A dc voltage source containing two or
more cells that convert chemical energy to electrical
energy.
 Cell‐ Single unit used to convert chemical energy
into a DC electrical voltage.

15. Components of a Simple Circuit
 FUSE
 is a safety device used to protect an electrical circuit
from the effect of excessive current.
 A fuse is usually rated in Amperes, which represent
the maximum continuous current it could handle
without blowing.
 The most popular type of fuse in Electronics is 3AG
type.

16. Components of a Simple Circuit
 FUSE

17. Components of a Simple Circuit
 Wires and Cable
 A wire is a single slender rod or filament of drawn
metal.
 A conductor is a wire suitable for carrying an
electric current.
 A stranded conductor is a conductor composed of a
group of wire or any combination of group of wires.

18. Components of a Simple Circuit
 Wires and Cable

19. Components of a Simple Circuit
 Switch and its function
 Switch is a device used to break an electric current
or transfer it to another conductor.
 A switch is a mechanical device used to connect and
disconnect a circuit at will.
 Switch is a manually operated device capable of
making, breaking, or changing the connection in an
electronics or electrical circuit.

21. Components of a Simple Circuit
 Load
- a source drives a load. Whatever component or piece
of equipment is connected to a source and draws
current from a source is a load on that source.
The following are examples but not limited to:
 Bulb
 Appliances

22. T
A
S
K
1
# 1

23. T
A
S
K
1
# 2

24. T
A
S
K
2
Fill in the blanks with what is referred to by each
of the following.
1. it is a type of current that allows the flow
of current in two directions
2. This type of current always flows in one
direction
3. A DC voltage source containing two or
more cells that convert chemical energy to
electrical energy.

25. T
A
S
K
2
Fill in the blanks with what is referred to by each
of the following.
4. Any device having two states, ON or OFF
5. A safety device used to protect an
electrical circuit from the effect of excessive
current.
6. A Components or pieces of equipment
connected to a source which draws current
from a source.

26. Websites:
Paul Goodman 2019 https://turbofuture.com/computers/Computer-Basics-10-Examples-of-Output-
Devices
© 2020 CBS Interactive. https://www.zdnet.com/article/best-cloud-storage-services/
©2008-2020 World Wide Web Foundation. This work is licensed under a Creative Commons
Attribution 4.0 International Licence https://webfoundation.org/about/vision/history-of-the-web/
https://www.cisco.com/c/en/us/products/security/advanced-malware-protection/what-is-
malware.html#:~:text=Malware%20is%20a%20contraction%20for,spyware%2C%20adware%2C%2
0and%20ransomware.
https://neosmart.net/wiki/disk-cleanup/
Agpaoa, Feliciano, Interior and Exterior Wiring Troubleshooting, National books Store, 1991
Enriquez, Michael, Simple Electronics (Basic) Fully Illustrated, Antonio M. Andes Sr.
Electronics Book Series
www.electronics‐lab.com
www.wikipedia.com
References

27. THANK YOU
AND
GOD BLESS