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435849
Electromagnetic Induction
Description
Higher Physics Mind Map on Electromagnetic Induction, created by Carmel Coleman on 12/12/2013.
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physics
physics
higher
Mind Map by
Carmel Coleman
, updated more than 1 year ago
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Created by
Carmel Coleman
almost 11 years ago
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Resource summary
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
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