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If a brass core of an inductor is replaced by an iron core, the inductance of coil:
- a)Increases
- b)Decreases
- c)Does not change
- d)Will be zero
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If a brass core of an inductor is replaced by an iron core, the induct...
The inductance of an inductor is primarily determined by four factors:
- The type of core material
- The number of turns of wire
- The spacing between turns of wire
- The diameter of the coil (core)
The type of core material:
- The core of an inductor is the material that occupies the space enclosed by the turns of the inductor.
- The amount of current in an iron-core inductor also influences its inductance. This is because of the magnetic properties of the iron core change as the current changes.
- The amount of inductance is determined by the amount of emf produced by a specified current change. The amount of emf depends on how much flux interacts with the conductors of the coil.
- If all the other factors are equal, an iron-core inductor has more inductance than an air-core inductor. This is because the iron has a higher permeability i.e. it can carry more flux.
- The brass core has more reluctance which opposes the flux compared to air core or an iron core. Therefore, the brass slug decreases inductance when it is centered in the coil.
- Therefore, if a brass core of an inductor is replaced by an iron core, the inductance of coil increases.
Most Upvoted Answer
If a brass core of an inductor is replaced by an iron core, the induct...
The inductance of an inductor is primarily determined by four factors:
- The type of core material
- The number of turns of wire
- The spacing between turns of wire
- The diameter of the coil (core)
The type of core material:
- The core of an inductor is the material that occupies the space enclosed by the turns of the inductor.
- The amount of current in an iron-core inductor also influences its inductance. This is because of the magnetic properties of the iron core change as the current changes.
- The amount of inductance is determined by the amount of emf produced by a specified current change. The amount of emf depends on how much flux interacts with the conductors of the coil.
- If all the other factors are equal, an iron-core inductor has more inductance than an air-core inductor. This is because the iron has a higher permeability i.e. it can carry more flux.
- The brass core has more reluctance which opposes the flux compared to air core or an iron core. Therefore, the brass slug decreases inductance when it is centered in the coil.
- Therefore, if a brass core of an inductor is replaced by an iron core, the inductance of coil increases.
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If a brass core of an inductor is replaced by an iron core, the inductance of coil:a)Increasesb)Decreasesc)Does not changed)Will be zeroCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 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 a brass core of an inductor is replaced by an iron core, the inductance of coil:a)Increasesb)Decreasesc)Does not changed)Will be zeroCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If a brass core of an inductor is replaced by an iron core, the inductance of coil:a)Increasesb)Decreasesc)Does not changed)Will be zeroCorrect answer is option 'A'. Can you explain this answer?.
If a brass core of an inductor is replaced by an iron core, the inductance of coil:a)Increasesb)Decreasesc)Does not changed)Will be zeroCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 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 a brass core of an inductor is replaced by an iron core, the inductance of coil:a)Increasesb)Decreasesc)Does not changed)Will be zeroCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If a brass core of an inductor is replaced by an iron core, the inductance of coil:a)Increasesb)Decreasesc)Does not changed)Will be zeroCorrect answer is option 'A'. Can you explain this answer?.
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