NEET Exam > NEET Questions > The strength of the magnetic field around a ...
Start Learning for Free
The strength of the magnetic field around a long straight wire carrying current is
- a)the same everywhere around the wire at any distance
- b)inversely proportional to the distance from the wire
- c)inversely proportional to the square of the distance from the wire
- d)directly proportional to the square of the distance from the wire
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
The strength of the magnetic field around a long straight wire carryi...
Explanation:
The strength of the magnetic field around a long straight wire carrying current is inversely proportional to the distance from the wire.
Reasoning:
The magnetic field around a long straight wire carrying current is a circular pattern. The magnetic field lines are perpendicular to the wire and form concentric circles around it.
- The magnetic field is strongest closest to the wire because the field lines are concentrated in a smaller area.
- As you move away from the wire, the magnetic field lines spread out over a larger area, making the magnetic field weaker.
- The strength of the magnetic field is inversely proportional to the distance from the wire. This means that if you double the distance from the wire, the strength of the magnetic field will be reduced to one-fourth its original strength.
Formula:
The formula for the magnetic field around a long straight wire carrying current is:
B = (μ0 * I)/(2πr)
- B is the magnetic field (in teslas)
- μ0 is the permeability of free space (4π x 10^-7 T m/A)
- I is the current in the wire (in amperes)
- r is the distance from the wire (in meters)
This formula shows that the magnetic field is inversely proportional to the distance from the wire (r).
The strength of the magnetic field around a long straight wire carrying current is inversely proportional to the distance from the wire.
Reasoning:
The magnetic field around a long straight wire carrying current is a circular pattern. The magnetic field lines are perpendicular to the wire and form concentric circles around it.
- The magnetic field is strongest closest to the wire because the field lines are concentrated in a smaller area.
- As you move away from the wire, the magnetic field lines spread out over a larger area, making the magnetic field weaker.
- The strength of the magnetic field is inversely proportional to the distance from the wire. This means that if you double the distance from the wire, the strength of the magnetic field will be reduced to one-fourth its original strength.
Formula:
The formula for the magnetic field around a long straight wire carrying current is:
B = (μ0 * I)/(2πr)
- B is the magnetic field (in teslas)
- μ0 is the permeability of free space (4π x 10^-7 T m/A)
- I is the current in the wire (in amperes)
- r is the distance from the wire (in meters)
This formula shows that the magnetic field is inversely proportional to the distance from the wire (r).
Free Test
FREE
| Start Free Test |
Community Answer
The strength of the magnetic field around a long straight wire carryi...
Magnetic field around the straight current carrying wire is given by
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer?
Question Description
The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer?.
The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The strength of the magnetic field around a long straight wire carrying current isa)the same everywhere around the wire at any distanceb)inversely proportional to the distance from the wirec)inversely proportional to the square of the distance from the wired)directly proportional to the square of the distance from the wireCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup