Electrical Science and Principles Recap 4 Includes Frequency, Power P = I x V and Transformers 

Student training aid for exam revision of electrical science and principles Level 1 and Level 2 includes frequency, power P = I x V and transformers.
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.
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