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Question: Can an efficient transformer step up energy?
Transformers are devices that can step up or step down voltage levels as per the requirement. However, it's important to understand that while transformers can increase voltage via stepping up or decrease voltage via stepping down, they do not actually create or destroy energy. The total power (P=VI, power equals voltage times current) remains the same before and after transformation, not factoring in the efficiency losses. A transformer’s efficiency refers to the difference between the power input and power output, considering any energy lost as heat due to resistance in the coils. Real-life transformers are never perfectly efficient, so some energy loss in the form of heat or electromagnetic radiation usually occurs.
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