Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > The applied voltage of a certain transformer ...
Start Learning for Free
The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density will
- a)increase by seven times
- b)increase by three times
- c)reduce to one quarter
- d)remain the same
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The applied voltage of a certain transformer isi ncreased by 75% while...
Most Upvoted Answer
The applied voltage of a certain transformer isi ncreased by 75% while...
Explanation:
When the applied voltage of a transformer is increased, it results in a higher magnetic flux in the core. Similarly, when the frequency of the applied voltage is reduced, it also increases the magnetic flux in the core.
Effect of increased voltage:
- The voltage applied to a transformer determines the magnetic field strength in the core.
- When the voltage is increased, the magnetic field strength also increases.
- This causes the core flux density to increase.
Effect of reduced frequency:
- The frequency of the applied voltage determines how fast the magnetic field changes in the core.
- When the frequency is reduced, the magnetic field changes at a slower rate.
- This allows more time for the magnetic flux to build up in the core, resulting in a higher core flux density.
Combined effect:
- When the voltage is increased by 75%, it means the magnetic field strength is increased by the same percentage.
- When the frequency is reduced by 25%, it means the time for the magnetic flux to build up is increased by the same percentage.
- Therefore, the combined effect is an increase in the core flux density.
Answer:
- The maximum core flux density will increase by three times.
When the applied voltage of a transformer is increased, it results in a higher magnetic flux in the core. Similarly, when the frequency of the applied voltage is reduced, it also increases the magnetic flux in the core.
Effect of increased voltage:
- The voltage applied to a transformer determines the magnetic field strength in the core.
- When the voltage is increased, the magnetic field strength also increases.
- This causes the core flux density to increase.
Effect of reduced frequency:
- The frequency of the applied voltage determines how fast the magnetic field changes in the core.
- When the frequency is reduced, the magnetic field changes at a slower rate.
- This allows more time for the magnetic flux to build up in the core, resulting in a higher core flux density.
Combined effect:
- When the voltage is increased by 75%, it means the magnetic field strength is increased by the same percentage.
- When the frequency is reduced by 25%, it means the time for the magnetic flux to build up is increased by the same percentage.
- Therefore, the combined effect is an increase in the core flux density.
Answer:
- The maximum core flux density will increase by three times.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer?
Question Description
The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer?.
The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The applied voltage of a certain transformer isi ncreased by 75% while the frequency of the applied voltage is reduced by 25%. The maximum core flux density willa)increase by seven timesb)increase by three timesc)reduce to one quarterd)remain the sameCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup