Republic of the Philippines
Department of Education
REGION IV-A CALABARZON SCHOOLS DIVISION OF
BATANGAS BAYBAYIN INTEGRATED NATIONAL HIGH
SCHOOL BAYBAYIN, ROSARIO, BATANGAS
DAY 1: LENZ’S LAW AND FARADAY’S LAW
PARTS OF MOTOR-GENERATOR MODEL
SET-UP 2:
FERROMAGNETS
ROTOR
COIL
STATOR
GENERATOR
OUTPUT (DC)
MOTOR INPUT (DC)
GENERATOR
OUTPUT (AC)
WIRING SYSTEM - the connection of
different wires on the total circuit.
SET-UP 1:
In our first setup, the battery was connected
to the motor-generator model, and the
challenge was to light up the LED by
rotating the rotor. In our first trial, we had
only 20 seconds to light up the LED, but we
couldn’t make it. In the second trial, the
results were the same as in the first trial, even
though we tried for 40 seconds. However, in
our last trial, we successfully lit up the LED
in 60 seconds by just rotating the rotor.
In our second setup, we connected the
multimeter to the motor's input port, where
the battery was also connected. In this setup,
we measured the amount of current
generated by rotating the rotor for 60
seconds. We conducted three trials to
observe the results (the multimeter was set to
5 amperes).
Trial 1: 0.02A
Trial 2: 0.59A
Trial 3: 0.63A
Observation: Based on the results, we can see
that the amount of generated current
increased over time, even though each trial
had the same duration for rotating the rotor.
The variation in current is due to differences
in the speed at which the rotor was rotated—
the higher the speed, the greater the amount
of current produced.
Baybayin, Rosario, Batangas
(043) 773–4530
301082@deped.gov.ph
@DepEdTayoBNHS301082
Republic of the Philippines
Department of Education
REGION IV-A CALABARZON SCHOOLS DIVISION OF
BATANGAS BAYBAYIN INTEGRATED NATIONAL HIGH
SCHOOL BAYBAYIN, ROSARIO, BATANGAS
DAY 2: LENZ’S LAW AND FARADAY’S LAW IN APPLICATION
In this activity, the materials that we need to
use are:
1. Battery
2. Multi-Meter
3. Conducting wires
4. AC-DC Motor-Generator Model
5. Transformer
6. Inductor Coil
7. Light Emitting Diode
SETUP 1: In the first setup, the battery is
connected to the transformer (with 1500
turns of coil) on one side, and the other side
of the transformer (with 750 turns of coil) is
connected to the multimeter. The reading on
the multimeter in the first trial is 0.01 A
(with the multimeter set to 5A).
SETUP 2: In the second setup, the battery is
connected to the inductor coil, which is then
connected to the multimeter (with the
multimeter set to 5A). The reading in both
the first and second trials was 0.01 A.
SETUP 3: In the third setup, the battery is
connected to the LED (Light Emitting
Diode), which is also connected to the
multimeter. In our first trial, the reading was
0.01 A, and the LED lit up as well.
SETUP 4: In the fourth setup, the battery is
connected to the transformer (with 750 turns
of coil) on one side, and the other side of the
transformer (with 1500 turns of coil) is
connected to the LED, which is then
connected to the multimeter. In the first trial,
the reading was 0.04 A, and we were able to
light up the LED.
SETUP 5: In the fifth setup, the motorgenerator model is connected to the LED,
which is then connected to the multimeter. In
the first trial, the reading was 0.01 A. In the
second trial, an additional battery was
connected to the motor-generator, and the
reading increased to 0.90 A.
DAY 3:
In this activity, the materials that we need to
use are:
1. Battery
2. Conducting wires
3. Transformer
4. Inductor Coil
5. Light Emitting Diode
Baybayin, Rosario, Batangas
(043) 773–4530
301082@deped.gov.ph
@DepEdTayoBNHS301082
Republic of the Philippines
Department of Education
REGION IV-A CALABARZON SCHOOLS DIVISION OF
BATANGAS BAYBAYIN INTEGRATED NATIONAL HIGH
SCHOOL BAYBAYIN, ROSARIO, BATANGAS
SETUP 1: In the first setup, the battery is
connected to the transformer (with 1500
turns of coil) on one side, and the other side
of the transformer (with 750 turns of coil) is
connected to the Light Emitting Diode. In
our first trial, we make the LED to light up.
This setup shows the stepdown.
SETUP 3: In the third setup, the battery is
connected to the transformer (with 1500
turns of coil) on one side, and the other side
of the transformer (with 750 turns of coil) is
connected to the Light Emitting Diode in
which the inductor coil is also connected. In
our first trial, we didn’t make the LED to
light up.
SETUP 2: In the second setup, the battery is
connected to the transformer (with 750 turns
of coil) on one side, and the other side of the
transformer (with 1500 turns of coil) is
connected to the Light Emitting Diode. In
our first trial, we make the LED to light up.
This setup shows the step up.
Baybayin, Rosario, Batangas
(043) 773–4530
301082@deped.gov.ph
@DepEdTayoBNHS301082