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15 cards from this deck
Changes voltage of AC supply
Increases voltage
Decreases voltage
Two coils of wire (not connected) & iron core
DC produces constant magnetic field (no change to induce current)
Alternating current (AC)
Changing magnetic field
Passes changing magnetic field through (easily magnetised)
Alternating potential difference (AC voltage)
Increase voltage before transmission
Lower high voltage to safe levels
Step-up transformer - voltage increases
Step-down transformer - voltage decreases
NpNs=VpVs\frac{N_p}{N_s} = \frac{V_p}{V_s}NsNp=VsVp
No, they are not connected
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