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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?
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Most Upvoted Answer
A straight wire of diameter 0.5 mm carrying a current of 1 A is replac...
B due to long straight wire is given by
2Ki/r, where r is the distance between the wire and concerned point. It is independent of radius of the wire.
2Ki/r, where r is the distance between the wire and concerned point. It is independent of radius of the wire.
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A straight wire of diameter 0.5 mm carrying a current of 1 A is replac...
Explanation:
Effect of changing wire diameter on magnetic field:
- When the wire diameter is changed, the magnetic field produced by the current flowing through the wire also changes.
Expression for magnetic field far away from a long straight wire:
- The magnetic field far away from a long straight wire is given by the formula: B = (μ₀ * I) / (2πr)
Relation between magnetic field and wire diameter:
- The magnetic field is directly proportional to the current I and inversely proportional to the distance r from the wire.
Effect of changing wire diameter on magnetic field strength:
- When the wire diameter is changed from 0.5 mm to 1 mm, the current remains the same.
- Since the current is the same, the magnetic field strength will remain unchanged far away from the wire.
Conclusion:
- Therefore, the strength of the magnetic field far away will be unchanged when the wire diameter is changed from 0.5 mm to 1 mm while carrying the same current of 1 A.
Effect of changing wire diameter on magnetic field:
- When the wire diameter is changed, the magnetic field produced by the current flowing through the wire also changes.
Expression for magnetic field far away from a long straight wire:
- The magnetic field far away from a long straight wire is given by the formula: B = (μ₀ * I) / (2πr)
Relation between magnetic field and wire diameter:
- The magnetic field is directly proportional to the current I and inversely proportional to the distance r from the wire.
Effect of changing wire diameter on magnetic field strength:
- When the wire diameter is changed from 0.5 mm to 1 mm, the current remains the same.
- Since the current is the same, the magnetic field strength will remain unchanged far away from the wire.
Conclusion:
- Therefore, the strength of the magnetic field far away will be unchanged when the wire diameter is changed from 0.5 mm to 1 mm while carrying the same current of 1 A.
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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?
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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?.
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?.
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