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If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-
- a)both hysteresis loss and eddy current loss in the core will increase.
- b)hysteresis loss will increase but eddy current loss will decrease
- c)hysteresis loss will increase but eddy current loss will remain unchanged.
- d)hysteresis loss will decrease but eddy current loss will increase
Correct answer is option 'C'. Can you explain this answer?
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If the frequency in the input voltage of a transformer is increased, ...
If the frequency of input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then hysteresis loss will increase but eddy current loss will remain unchanged.
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If the frequency in the input voltage of a transformer is increased, ...
Explanation:
When the frequency of the input voltage of a transformer is increased while keeping the magnitude of the voltage unchanged, the following effects occur:
Hysteresis Loss:
- Hysteresis loss occurs due to the magnetization and demagnetization of the transformer core as the alternating current flows through it.
- The hysteresis loss is directly proportional to the frequency of the input voltage.
- Therefore, when the frequency is increased, the hysteresis loss also increases.
- This is because the core has to undergo magnetization and demagnetization more frequently, resulting in more energy loss due to hysteresis.
Eddy Current Loss:
- Eddy currents are induced in the transformer core due to the changing magnetic field caused by the alternating current.
- Eddy current loss occurs due to the resistance of the core material to the flow of these currents.
- The eddy current loss is directly proportional to the square of the frequency of the input voltage.
- Therefore, when the frequency is increased, the eddy current loss also increases.
- This is because higher frequencies induce stronger eddy currents, resulting in more energy loss due to eddy currents.
Conclusion:
- When the frequency of the input voltage of a transformer is increased while keeping the magnitude of the voltage unchanged, the hysteresis loss and eddy current loss in the core will both increase.
- Option 'C' is the correct answer because it states that the hysteresis loss will increase, which is true, and the eddy current loss will remain unchanged, which is false.
When the frequency of the input voltage of a transformer is increased while keeping the magnitude of the voltage unchanged, the following effects occur:
Hysteresis Loss:
- Hysteresis loss occurs due to the magnetization and demagnetization of the transformer core as the alternating current flows through it.
- The hysteresis loss is directly proportional to the frequency of the input voltage.
- Therefore, when the frequency is increased, the hysteresis loss also increases.
- This is because the core has to undergo magnetization and demagnetization more frequently, resulting in more energy loss due to hysteresis.
Eddy Current Loss:
- Eddy currents are induced in the transformer core due to the changing magnetic field caused by the alternating current.
- Eddy current loss occurs due to the resistance of the core material to the flow of these currents.
- The eddy current loss is directly proportional to the square of the frequency of the input voltage.
- Therefore, when the frequency is increased, the eddy current loss also increases.
- This is because higher frequencies induce stronger eddy currents, resulting in more energy loss due to eddy currents.
Conclusion:
- When the frequency of the input voltage of a transformer is increased while keeping the magnitude of the voltage unchanged, the hysteresis loss and eddy current loss in the core will both increase.
- Option 'C' is the correct answer because it states that the hysteresis loss will increase, which is true, and the eddy current loss will remain unchanged, which is false.
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If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer?
Question Description
If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer?.
If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer?.
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ample number of questions to practice If the frequency in the input voltage of a transformer is increased, keeping the magnitude of the voltage unchanged, then-a)both hysteresis loss and eddy current loss in the core will increase.b)hysteresis loss will increase but eddy current loss will decreasec)hysteresis loss will increase but eddy current loss will remain unchanged.d)hysteresis loss will decrease but eddy current loss will increaseCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice SSC tests.
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