Why Transformers Are Used

The video tutorial explains the use of transformers in adjusting voltage levels for efficient power transmission. It covers how step up transformers increase voltage to reduce energy loss over long distances, while step down transformers decrease voltage for safe home use. The tutorial also discusses the differences in voltage systems between North America and the rest of the world, highlighting the A3 and A2 wire systems.

What is the purpose of using a step-up transformer in power transmission?

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How does the resistance of cables affect energy loss during power transmission?

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Explain why high voltage is used for transmitting electricity over long distances.

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What voltage levels do homes in North America typically use, and how is this achieved?

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Describe the difference between the A3 wire system and the A2 wire system.

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