The efficiency of transfomer is very high because

Options

A. (a)No part of the transformer is in motion
B. (b)It creates maximum voltage
C. (c)It creates minimum voltage
D. (d)None of the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why the efficiency of a transformer is very high. We need to analyze the options provided to determine the correct reason.

2. **Analyzing the Options**:
- **Option A**: No part of the transformer is in motion.
- **Option B**: It creates maximum voltage.
- **Option C**: It creates minimum voltage.
- **Option D**: None of the above.

3. **Evaluating Option A**: A transformer is a static device, meaning it does not have any moving parts. This is significant because:
- No moving parts imply that there are no mechanical losses due to friction or wear and tear, which can occur in devices with moving components.

4. **Evaluating Options B and C**: While transformers can step up (increase) or step down (decrease) voltage, the efficiency is not solely dependent on whether they create maximum or minimum voltage. The key factor is the absence of mechanical losses.

5. **Conclusion**: Since the transformer is a static device with no moving parts, it experiences minimal energy losses, leading to high efficiency. Therefore, the correct answer is:
- **Option A**: No part of the transformer is in motion.

6. **Final Answer**: The efficiency of a transformer is very high because no part of the transformer is in motion (Option A).

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