Transformers: working, types, and applications MCQs

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1. The working principle of a transformer is based on:





2. A transformer operates on:





3. The core of a transformer is made of:





4. What is the main purpose of the core in a transformer?





5. In an ideal transformer, the input power is equal to:





6. A step-up transformer:





7. Which type of transformer is used in transmission lines?





8. An auto-transformer differs from a regular transformer because it:





9. Isolation transformers are used for:





10. Distribution transformers are designed for:





11. Which of the following is NOT an application of transformers?





12. Transformers are commonly used in power systems to:





13. Which type of transformer is used in electrical appliances for safety?





14. In electronic circuits, transformers are used for:





15. The main purpose of a step-down transformer in power supply is to:





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