a step up transformer used for
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![i) What is a step up transformer used for?
ii) A transformer has an input voltage of 240 V and a primary coil with 400 turns. if the output voltage is 12 V.
Calculate how many turns are there on the secondary coil](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9ea27a1e-aa42-457c-a462-15f116aee7fa%2F29194917-ad4b-4249-af87-32462cf79232%2F8ti53x9_processed.jpeg&w=3840&q=75)
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