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10 cards from this deck
Change voltage of AC
NsNp=VsVp\frac{N_s}{N_p} = \frac{V_s}{V_p}NpNs=VpVs
Increases voltage; more turns on secondary coil
Decreases voltage; fewer turns on secondary coil
Changing magnetic field induces EMF via Faraday's Law
IsVsIpVp×100%\frac{I_s V_s}{I_p V_p} \times 100\%IpVpIsVs×100%
Use laminated iron core
P=I2RP = I^2 RP=I2R
Reduces current, minimising I2RI^2 RI2R losses
Primary coil, secondary coil, iron core
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