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A straight wire of diameter 2.5 mm carrying a current of 2 A is replaced by another thick wire of 5 mm diameter. The strength of the magnetic field far away is
  • a)
    Twice the earlier value
  • b)
    One-half of the earlier value
  • c)
    One-quarter of the earlier value
  • d)
    Same as the earlier value
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A straight wire of diameter 2.5 mm carrying a current of 2 A is replac...
Magnetic field due to current-carrying wire is independent of its diameter or cross-sectional area of so long as the current remains the same.
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A straight wire of diameter 2.5 mm carrying a current of 2 A is replaced by another thick wire of 5 mm diameter. The strength of the magnetic field far away isa)Twice the earlier valueb)One-half of the earlier valuec)One-quarter of the earlier valued)Same as the earlier valueCorrect answer is option 'D'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A straight wire of diameter 2.5 mm carrying a current of 2 A is replaced by another thick wire of 5 mm diameter. The strength of the magnetic field far away isa)Twice the earlier valueb)One-half of the earlier valuec)One-quarter of the earlier valued)Same as the earlier valueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A straight wire of diameter 2.5 mm carrying a current of 2 A is replaced by another thick wire of 5 mm diameter. The strength of the magnetic field far away isa)Twice the earlier valueb)One-half of the earlier valuec)One-quarter of the earlier valued)Same as the earlier valueCorrect answer is option 'D'. Can you explain this answer?.
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