Post on 24-Dec-2015
Teaching the Concept of Teaching the Concept of
Marlon Flores SacedonMarlon Flores SacedonVisayas State University
Visca, Baybay, LeyteOct. 23, 2009
Visayas State UniversityVisca, Baybay, Leyte
Oct. 23, 2009
DC MotorDC MotorUsing computer animations Using computer animations
ObjectiveObjective
The paper aims to provide the secondary and tertiary Physics teachers an instructional material in teaching the concepts of DC Motor using geometric animated presentation created in Microsoft Powerpoint software.
No one needs to be reminded of the importance of electric motors in contemporary society.
No one needs to be reminded of the importance of electric motors in contemporary society.
A DC motor is an electric motor that runs on direct current (DC) electricity.
What is a DC motor?What is a DC motor?
Examples of DC Motors
Toy DC motors
The St. LouisDC Motor
The St. LouisDC Motor
How does a DC motor work?How does a DC motor work?
In a motor a magnetic moment acts on a current-carrying conductor, and electric energy is converted to mechanical energy.
+
-
I
Magnetic moment
I = electric current (amp)A = cross section area of conductor
µ = IA
Magnetic wire conductor
CIRCULAR LOOP CONDUCTION
S
+-DC Supply
N Rotor (Magnet wire)
Single Coil DC Motor Apparatus
S
+-DC Supply
N
Single Coil DC Motor Apparatus
Rotor (Magnet wire)
S
+-DC Supply
N
Single Coil DC Motor Apparatus
Rotor (Magnet wire)
N
+-DC Supply
SB
τ
Rotation axis
Rotor (Magnet wire)
I
I
I
I
I
II
Single Coil DC Motor System
+-DC Supply
Permanent magnets
commutatorcommutatorbrush
brush
µ = magnetic moment (A.m2)
B = magnetic field (Tesla)
τ = torque
B
τ
τ
S
N
+-DC Supply
SB
N
I
I
I
I
I
II
Single Coil DC Motor Apparatus
+-DC Supply
B
τ
τ
τ
S
N
+-DC Supply
SB
τ
N
I
I
I
I
I
II
Single Coil DC Motor Apparatus
+-DC Supply
B
τ
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
loopofareaA
IA
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
I
II
I
S
0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
I
I
II
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
Run
+
I
I-
Magnetic field lines
Torque moment
Current
Magnetic wire
Solenoid (Electromagnet)
Iron core
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
IB
τ
+-DC Supply
I
commutator
brush
Magnet wire
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τI
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
BI
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
IB
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τI
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
BI
τ
attract
repel
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
Run
Do it yourself!
• 1 pc. Dry cell battery size AA• 1 pc. A battery holder or Tyro
foam• 1 pc. Permanent magnet• 3 feet Magnet wire gauge 20 or
thicker• 1 foot Connecting wire • 1 pc. cutter
• 1 pc. Dry cell battery size AA• 1 pc. A battery holder or Tyro
foam• 1 pc. Permanent magnet• 3 feet Magnet wire gauge 20 or
thicker• 1 foot Connecting wire • 1 pc. cutter
MaterialsMaterials
+_
S
N
B
+_
SN
B
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
S0τ0
+-DC Supply
N I=0
Single Coil DC Motor Apparatus
B
I
II
I
S
+-DC Supply
N
Single Coil DC Motor Apparatus
B
I
II
I
I
I
I
τ
SB
τ
+-DC Supply
N
I
I
I
I
II
I
Single Coil DC Motor Apparatus
Back
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
I
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
Bτ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
Bτ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
τ
S
+-DC Supply
N
I
I
I
I
Multiple Coil DC Motor Apparatus
B
Back