Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Experiment 8
Power in DC Circuits Part I
OBJECTIVE
 To calculate the power dissipated in a direct current circuit.
 To show that the power dissipated in a load is equal to the power supplied by the
source.
DISCUSSION
The purpose of a power source (suppl
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Level _
Controller Output (OUT) _
Does the controller output change _ (Yes/No)
Self Review 43
1. A system that uses an electronic controller in manual mode is a(n) _ loop
system.
2. Once the controller is in _mode, the operator can adjust the controllers
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Safety and the Power Supply
Electric shock
What about electric shocks? Are they fatal? The physiological effects of electric current
can generally be predicted by the chart shown in Figure 41.
AMPERES
PHYSIOLOGICAL EFFECTS
OF
ELECTRIC CURRENTS
Figure 41
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Power in DC Circuits Part II
OBJECTIVE
To calculate the power dissipated in a resistive DC circuit
To show that this power can be found by using any one of three methods
DISCUSSION
Electrical power in a DC circuit can be found by using the equation:
P=ExI
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Power in DC Circuits Part I
OBJECTIVE
To calculate the power dissipated in a direct current circuit.
To show that the power dissipated in a load is equal to the power supplied by the
source.
DISCUSSION
The purpose of a power source (supply) in an electric
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Experiment 2
Resistances in Parallel
OBJECTIVE
To become physically acquainted with the Resistive Load.
To learn the operational functions of the Resistive Load.
To become familiar with the operation of an ohmmeter.
To measure the equivalent resistance of
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Experiment 1
Series and Parallel Equivalent Resistances
OBJECTIVE
To calculate the single resistance which is equivalent to a group of resistors
connected in series
To calculate the single resistance which is equivalent to a group of resistors
connected i
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Experiment
7
Circuit Solution  Part II
OBJECTIVE
To verify experimentally, the theoretical calculations performed in Experiment 6.
DISCUSSION
In circuits it often happens that there is a junction of common point where a number of
wires are joined togeth
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Experiment 5
Ohms Law
OBJECTIVE
To demonstrate Ohms Law and to show its various forms.
To become familiar with DC voltmeters and ammeters
DISCUSSION
Electrical resistance is the opposition to the flow of electrical current in a circuit and is
dependent on
Lyceum of the Philippines University  Batangas  Batangas City
Engineering
COECS 1204

Summer 2016
Experiment 6
Circuit Solution Part I
OBJECTIVE
To calculate the voltages and currents in series and in parallel circuits.
DISCUSSION
Series and parallel electric circuits can be solved by applying Ohms Law and from
knowledge of the following rules:
a. In