True: Potential difference means voltage, Transformers use AC, Moving a wire faster induces a larger PD, Power stations rely on the generator effect, More coils on the wire induces a larger PD, False: Iron is slow to demagnetise, Transformers change resistance, Using a weaker magnetic field leads to larger induced PD, Power stations rely on the motor effect, Transformers keep PD the same,

Electromagnetic induction

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