electric circuits

1. ELECTRICAL WIRING
DIAGRAM

2. ALWAYS REMEMBER!!
WHEN DEALING WITH ELECTRICITY
SAFETY FIRST ALL THE TIME

3. SCHEMATIC DIAGRAM
 Is a representation of the elements of a
system using abstract, graphic symbols
rather than realistic pictures.
 The symbolic elements are arranged to
be more easily interpreted by the viewer.

5. PICTORIAL DIAGRAM
 is a sketch of electrical circuit that shows
the external appearance of each
component. It is much like a photograph
of the circuit and uses simple images of
parts.
 The simplest of all the diagram

7. ELECTRICAL CIRCUITS
Is a path in which electrons from a
voltage or current source flow
Complete circuit is composed of source,
load and a path

8. COMPLETE ELECTRICAL CIRCUIT

9. TWO FORMS OF ELECTRICAL
POWER (SOURCE)
 ALTERNATING CURRENT
 DIRECT CURRENT

10. TYPES OF ELECTRICAL
CIRCUITS

11. CLOSED CIRCUITS
 An electrical circuit through which current
can flow in an uninterrupted path.
 Continuous path through which current
can flow

14. OPEN CIRCUIT
 This is a type of circuit in which there is
NO current flow
 When you open the switch or turned it off
it becomes open circuit and becomes
closed circuit when turned on.

16. SHORT CIRCUIT
 A type of circuit that allows a current to
travel along an unintended path.
 This result in excessive amount of current
flow, which causes fire or explosion .

17. SERIES CIRCUITS

18. SERIES CIRCUITS
 The current through series component is
equal
 The voltage drops across each
components in the circuit sum to the
source voltage. Also, in a series circuit, all
components of the same type may be
combined to result in an equipment value.

19.  Is that the amount of current is the same
through the component in the circuit. This is
because there is only one path for electrons
to flow in a series circuit, and because free
electrons flow through conductors.
 A device is connected in a manner such that
there is only one pathway by which charge
can transverse the external circuits

20. Schematic Pictorial
diagram diagram

21. PARALLEL CIRCUITS

22. PARALLEL CIRCUITS
 The voltage across every parallel
component is equal.
 Has more than one resistor and gets its
name from having multiple paths to move
along.

23.  Charges can move through any several
paths.
 Is one that has two or more paths for the
electricity to flow, the loads are parallel to
each other.

24. Schematic Pictorial
diagram diagram

25. Difference between Series and
Parallel Circuits
SERIES
CIRCUITS
SIMILARITY PARALLEL
CIRCUITS
 One pathway
Converts electrical
energy to light, heat,
sound, etc.
 Two or more path
 Current same
anywhere in the
circuit
 Current splits passes
through pathways
 One bulb is busted,
circuit incomplete
 Voltages across are
equal
 Brightness of the bulb
is less
 One bulb is busted,
Circuit is still
complete

26. Cite some importance of Series
and Parallel Circuits in the
households.

27. MULTIPLE CHOICE
1. Which of the following statement does NOT describe
a series circuits?
A. Resistance adds up draws less current
B. Brightness of bulbs are less
C. Current splits- passes through pathways adds
up again
D. Battery last longer
2. Which of these statements BEST describes a parallel
circuits?
A. Battery life is shorter
B. Currents splits-passes through pathways and
adds up again
C. A closed circuit in which current divides into
two or more paths by recombining to complete
the circuit
D. Brings more electricity than series circuit

28. 3. Make a correct sequence of the series
connection using the given materials
!. Bulb II. Switch III. Batteries IV. Wires
4. What are examples of Series circuits?
A. Flashlight
B. House lighting and home wiring
C. Emergency lights
D. None of these
5. What are the examples of Parallel circuits?
A. Flashlight
B. Christmas lights
C. House lighting and home wiring
D. None of these

29. ASSIGNMENT
 What is Series-parallel Connections?
 Make your own example of series-parallel
connection using the common electrical
symbol.