Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  If the applied voltage to a transformer prima... Start Learning for Free
If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:
  • a)
    decrease and remain the same,
  • b)
    increase and decrease.
  • c)
    both remain the same.
  • d)
    remain the same and increase.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the applied voltage to a transformer primary isincreased by keeping...
Magnetising current remains same bcz B is constant
B proportional to V/F
as voltage propotional to iron lossess core loss increaeses
Free Test
Community Answer
If the applied voltage to a transformer primary isincreased by keeping...
Explanation:

When the applied voltage to a transformer primary is increased by keeping the V/f ratio fixed, the following changes occur:

1. Magnetizing current:

- The magnetizing current is the current required to magnetize the transformer core.
- It is proportional to the applied voltage.
- When the applied voltage is increased, the magnetizing current also increases.
- Therefore, the magnetizing current remains the same when the applied voltage is increased while keeping the V/f ratio fixed.

2. Core loss:

- The core loss is the power loss that occurs in the transformer core due to hysteresis and eddy currents.
- It is proportional to the square of the applied voltage.
- When the applied voltage is increased, the core loss also increases.
- Therefore, the core loss increases when the applied voltage is increased while keeping the V/f ratio fixed.

Conclusion:

Hence, the correct answer is option D, i.e., the magnetizing current remains the same and the core loss increases when the applied voltage to a transformer primary is increased by keeping the V/f ratio fixed.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer?
Question Description
If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. 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 If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. 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 If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer?.
Solutions for If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. 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 If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice If the applied voltage to a transformer primary isincreased by keeping the V/f ratio fixed, then the magnetizing current and the core loss will,respectively:a)decrease and remain the same,b)increase and decrease.c)both remain the same.d)remain the same and increase.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev