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(A): Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importation of hard magnetic materials.
(R): Alnico magnet alloys have the lowest energy per unit of volume of any permanent magnet material available commercially.
  • a)
    Both A and R are true and R is a correct explanation of A
  • b)
    Both A and R are true but R is not a correct explanation of A
  • c)
    A is true but R is false
  • d)
    R is false but R is true
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
(A): Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importa...
Statement A: Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importation of hard magnetic materials - This statement is true. Alnico alloys are widely used as hard magnetic materials. They are composed of aluminum (Al), nickel (Ni), iron (Fe), and cobalt (Co), along with small amounts of other elements. Alnico magnets exhibit strong magnetic properties and are commonly used in various applications, including motors, sensors, and speakers.
Statement R: Alnico magnet alloys have the lowest energy per unit of volume of any permanent magnet material available commercially - This statement is false. Alnico magnets do not have the lowest energy per unit of volume among permanent magnet materials available commercially. In fact, Alnico magnets have relatively high magnetic energy compared to other permanent magnet materials, such as neodymium (NdFeB) magnets or samarium cobalt (SmCo) magnets.
Therefore, while Statement A is true, Statement R is false. Alnico alloys are indeed widely used as hard magnetic materials, but they do not have the lowest energy per unit of volume among commercially available permanent magnet materials. Hence, the correct answer is (C) A is true but R is false.
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(A): Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importation of hard magnetic materials.(R): Alnico magnet alloys have the lowest energy per unit of volume of any permanent magnet material available commercially.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)R is false but R is trueCorrect answer is option 'C'. Can you explain this answer?
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(A): Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importation of hard magnetic materials.(R): Alnico magnet alloys have the lowest energy per unit of volume of any permanent magnet material available commercially.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)R is false but R is trueCorrect answer is option 'C'. 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 (A): Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importation of hard magnetic materials.(R): Alnico magnet alloys have the lowest energy per unit of volume of any permanent magnet material available commercially.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)R is false but R is trueCorrect answer is option 'C'. 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 (A): Alnico (aluminium-nickel-iron-cobalt) alloys are the mass importation of hard magnetic materials.(R): Alnico magnet alloys have the lowest energy per unit of volume of any permanent magnet material available commercially.a)Both A and R are true and R is a correct explanation of Ab)Both A and R are true but R is not a correct explanation of Ac)A is true but R is falsed)R is false but R is trueCorrect answer is option 'C'. Can you explain this answer?.
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