Induced Potential, Transformers & the National Grid (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Electromagnetic (EM) induction
Electromagnetic (EM) induction
PD induced when conductor moves across field or field changes around conductor
Alternative name for electromagnetic induction
Alternative name for electromagnetic induction
Generator effect
How EM induction relates to motor effect
How EM induction relates to motor effect
Opposite - generates electricity from motion
What EM induction requires between conductor & field
What EM induction requires between conductor & field
Relative movement
Moving magnet back & forth through coil creates what?
Moving magnet back & forth through coil creates what?
Alternating current (AC)
What does induced current's magnetic field do?
What does induced current's magnetic field do?
Opposes the change
Condition for current to be induced in conductor
Condition for current to be induced in conductor
Conductor must be part of complete circuit
How to reverse induced PD direction (method 1)
How to reverse induced PD direction (method 1)
Reverse conductor's movement/direction
How to reverse induced PD direction (method 2)
How to reverse induced PD direction (method 2)
Change direction of magnetic field
How to increase induced PD (method 1)
How to increase induced PD (method 1)
Increase speed of relative motion
How to increase induced PD (method 2)
How to increase induced PD (method 2)
Add more turns to the coil
How to increase induced PD (method 3)
How to increase induced PD (method 3)
Increase strength of magnetic field