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Two straight horizontal parallel wires are carrying the same current in same direction, d is the distnace between the wires. You are povided with a small freely suspended magnetic needle. At which of the following positions will the orientation of the needle be independent of the magnitude of current in the wires?​
  • a)
    At a distance d/2 from any of the wires.
  • b)
    At a distance d/2 from any of the wires in the horizontal plane.
  • c)
    Anywhere on the circumference of a vertical circle of radius d ans centre half way between the wires.
  • d)
    At points half way between the wires in the horizontal plane.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Two straight horizontal parallel wires are carrying the same current i...
 The answer is d.
At these points, the resultant field =0
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Two straight horizontal parallel wires are carrying the same current i...
Explanation:

Position where the orientation of the needle is independent of the magnitude of current:
- At a distance d/2 from any of the wires

Reasoning:
- When the magnetic needle is placed at a distance d/2 from any of the wires, the magnetic fields produced by the two wires are equal in magnitude and opposite in direction at that point.
- The magnetic fields due to the two wires cancel each other out at this position, resulting in a net magnetic field of zero.
- As a result, the orientation of the magnetic needle will be independent of the magnitude of current in the wires.

Conclusion:
- Therefore, at a distance d/2 from any of the wires, the orientation of the magnetic needle will be independent of the magnitude of current in the wires.
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Community Answer
Two straight horizontal parallel wires are carrying the same current i...
The magnetic force is given by F = q(v x B), where q = 3.5C, v = 2m/s and B = 4 units. Thus we get F = 3.5(2 * 4) = 28 units.
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Two straight horizontal parallel wires are carrying the same current in same direction, d is the distnace between the wires. You are povided with a small freely suspended magnetic needle. At which of the following positions will the orientation of the needle be independent of the magnitude of current in the wires?​a)At a distance d/2 from any of the wires.b)At a distance d/2 from any of the wires in the horizontal plane.c)Anywhere on the circumference of a vertical circle of radius d ans centre half way between the wires.d)At points half way between the wires in the horizontal plane.Correct answer is option 'A'. Can you explain this answer?
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Two straight horizontal parallel wires are carrying the same current in same direction, d is the distnace between the wires. You are povided with a small freely suspended magnetic needle. At which of the following positions will the orientation of the needle be independent of the magnitude of current in the wires?​a)At a distance d/2 from any of the wires.b)At a distance d/2 from any of the wires in the horizontal plane.c)Anywhere on the circumference of a vertical circle of radius d ans centre half way between the wires.d)At points half way between the wires in the horizontal plane.Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Two straight horizontal parallel wires are carrying the same current in same direction, d is the distnace between the wires. You are povided with a small freely suspended magnetic needle. At which of the following positions will the orientation of the needle be independent of the magnitude of current in the wires?​a)At a distance d/2 from any of the wires.b)At a distance d/2 from any of the wires in the horizontal plane.c)Anywhere on the circumference of a vertical circle of radius d ans centre half way between the wires.d)At points half way between the wires in the horizontal plane.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two straight horizontal parallel wires are carrying the same current in same direction, d is the distnace between the wires. You are povided with a small freely suspended magnetic needle. At which of the following positions will the orientation of the needle be independent of the magnitude of current in the wires?​a)At a distance d/2 from any of the wires.b)At a distance d/2 from any of the wires in the horizontal plane.c)Anywhere on the circumference of a vertical circle of radius d ans centre half way between the wires.d)At points half way between the wires in the horizontal plane.Correct answer is option 'A'. Can you explain this answer?.
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