JEE Exam  >  JEE Questions  >  A straight wire of diameter 0.5 mm carrying a... Start Learning for Free
A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away is
  • a)
    twice the earlier value
  • b)
    half of the earlier value
  • c)
    quarter of its earlier value
  • d)
    unchanged
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A straight wire of diameter 0.5 mm carrying a current of 1 A is replac...
Explanation:

Effect of Changing Wire Diameter:
When the wire diameter is changed from 0.5 mm to 1 mm, the current carrying capacity of the wire increases. However, the strength of the magnetic field far away from the wire is independent of the wire diameter.

Biot-Savart Law:
The magnetic field produced by a current-carrying wire is given by the Biot-Savart law, which states that the magnetic field at a point is directly proportional to the current flowing through the wire and inversely proportional to the distance from the wire.

Relation to Wire Diameter:
The diameter of the wire does not appear in the equation for the magnetic field produced by a current-carrying wire. Therefore, changing the diameter of the wire does not affect the strength of the magnetic field far away from the wire.

Conclusion:
Hence, when a wire of 0.5 mm diameter carrying 1 A current is replaced by a wire of 1 mm diameter carrying the same current, the strength of the magnetic field far away remains unchanged. Therefore, the correct answer is option 'D' - unchanged.
Explore Courses for JEE exam
A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer?
Question Description
A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer?.
Solutions for A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by another wire of 1 mm diameter carrying the same current. The strength of magnetic field far away isa)twice the earlier valueb)half of the earlier valuec)quarter of its earlier valued)unchangedCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

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