20.6d Mutual Inductance (Transformer) Coils | A2 Electromagnetic Induction | CAIE A Level Physics
Автор: ETphysics
Загружено: 2021-02-05
Просмотров: 7344
Case 4: One solenoid can generate a changing flux, and induce emf in another solenoid!
00:00 Intro & Setup
02:02 Current to generate magnetic field
06:20 Alternating current for flux change
10:31 Graph of current (primary coil) and induced emf (secondary)
19:21 Explaining how current P induces emf Q
23:41 Purpose of Iron Core (can be shaped too!)
ANIMATIONS:
Mutual Inductance ( • Mutual Inductance )
Transformers ( • Transformers - Electric Power transmission )
#A2magneticInduction Playlist:
• Ch20 Magnetic Induction (Part 2) | CAIE 97...
Practice Past Year Questions
starred Q's are in example videos
MJ10 P41 Q5 (pg4) Probe Proportionality relationship
ON12 P41 Q7 (pg8) Basic Transformer + working principle*
MJ13 P41 Q5 (pg10) 2 linked coils
ON13 P41 Q5 (pg11) Probe, coil & voltage*
MJ14 P41 Q7 (pg13) Sketch voltage of coil*
MJ15 P42 Q7b (pg14) Phase relationship in transformer*
MJ16 P42 Q10 (pg17) emf-sketch
ON16 P41 Q9 (pg18) emf-sketch for linked coils*
ON17 P43 Q5 (pg20) emf-sketch
MJ18 P41 Q10 (pg21) Jumping Ring*
ON18 P41 Q9 (pg23) Hall probe vs coil calculation*
MJ19 P41 Q8 (pg24) 2 coils calculation.
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