Lecture #9
Energy in an electromagnetic field, Flow of energy
Poynting vector
PH103: Physics-I
(Unit 3: Electromagnetic Theory)
Pranjal Kumar Gogoi
Department of Applied Sciences
Tezpur University
Autumn Semester, 2021
,Outline
• Electric Energy Storage
• Magnetic Energy Storage
• Energy in Electromagnetic Waves, the Poynting Vector
• Poynting’s Theorem
, Outline
• Electric Energy Storage
✓ Energy Stored in a Capacitor
✓ Electric Field inside a Parallel Plate Capacitor
✓ Capacitance of a Parallel Plate Capacitor
✓ Energy Density in Electric Field
• Magnetic Energy Storage
• Energy in Electromagnetic Waves, the Poynting Vector
• Poynting’s Theorem
Energy in an electromagnetic field, Flow of energy
Poynting vector
PH103: Physics-I
(Unit 3: Electromagnetic Theory)
Pranjal Kumar Gogoi
Department of Applied Sciences
Tezpur University
Autumn Semester, 2021
,Outline
• Electric Energy Storage
• Magnetic Energy Storage
• Energy in Electromagnetic Waves, the Poynting Vector
• Poynting’s Theorem
, Outline
• Electric Energy Storage
✓ Energy Stored in a Capacitor
✓ Electric Field inside a Parallel Plate Capacitor
✓ Capacitance of a Parallel Plate Capacitor
✓ Energy Density in Electric Field
• Magnetic Energy Storage
• Energy in Electromagnetic Waves, the Poynting Vector
• Poynting’s Theorem