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1. State the advantages of AC over DC.
a. Converting Dc to AC is a .
b. The cost of producing AC is the cost of producing DC.
2. Differentiate step up and step down transformer.
a. The number of turns in the secondary coil of a step-up transformer is than the number of turns in the primary coil.
b. The number of turns in the secondary coils in a step-down transformer is than the number of turns in the main coil.
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