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Electromagnetic Induction - Coggle Diagram
Electromagnetic Induction
passing wire across magnetic field
EMF induced can be detected by galvanometer
induced EMF can be increased by
moving wire faster
use stronger magnet
increase length of wire in magnetic field
current and EMF direction can be reversed by
moving wire in opposite direction
turn magnet round so field direction is reversed
Fleming's right-hand rule
thumb->motion
index finger->field
middle finger->induced emf
bar magnet pushed into coil
induced EMF and current can be increase by
move magnet faster
use stronger magnet
increase number of turns in coil
direction of induced EMF and current can be reversed by
magnet being pulled away
use South pole instead of North Pole
magnet held still->no EMF
induced current->flows in direction that opposes change that produced it
right-hand grip rule
shows direction of current
finger->conventional current direction
thumb->North pole