Zusammenfassung der Ressource
Electromagnetic Induction
- Define
- Electromagnetic
Induction
- Magnetic Flux
- Mutual Induction
- Self Induction
- State
- Unit of Magnetic Flux
- Faraday's
Law
- Lenz's
Law
- What is an
electrical
generator?
- What is a transformer?
- Recall
- A coil opposes a.c. with both its ohmic resistance and back emf induced in it.
- A capacitor blocks
d.c. but conducts
a.c.
- Electromagnetic Induction occurs in a generator
- Mains electricity is a.c.
- Draw
- A graph of an a.c. voltage/current against time.
- A graph of d.c. voltage/current against time.
- A labelled diagram of a transformer
- Explain
- Induced emf
- Induced current
- Alternating current
- Step up/down transformer
- Primary/secondary coil
- Describe
- An expt to show electromagnetic induction
- Demonstrate Faradays and Lenx's Laws
- Show a.c. using an ocsilloscope
- Show the effect of an inductor on a.c.
- Show a capacitor conducts a.c. but not d.c.
- Demonstrate the action of a transformer
- compare peak and rms values of a.c.
- Show mutual/self induction
- Formulae
- List
- Practical Applications of Generators
- practical uses of inductors
- practical uses of transformers