Class 10 Exam  >  Class 10 Questions  >  Which of the following correctly describes th... Start Learning for Free
Which of the following correctly describes the magnetic field near a long straight wire ?
  • a)
    The field consists of straight lines perpendicular to the wire.
  • b)
    The field consists of straight lines parallel to the wire.
  • c)
    The field consists of radial lines originating from the wire.
  • d)
     The field consists of concentric circles centred on the wire.
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following correctly describes the magnetic field near a l...
The field consists of concentric circles centred on the wire.
On applying right-hand thumb rule, we find the direction of magnetic field. The field is in the form of concentric circles centred on the wire carrying current.
Hence, the option (d) is correct.
View all questions of this test
Most Upvoted Answer
Which of the following correctly describes the magnetic field near a l...
The Correct Answer is Option D: The magnetic field near a long straight wire consists of concentric circles centered on the wire.

Explanation:
When an electric current flows through a wire, it produces a magnetic field around it. The magnetic field lines are a representation of the direction and strength of the magnetic field.

Magnetic Field Around a Long Straight Wire:
- The magnetic field near a long straight wire is circular and symmetrical.
- The magnetic field lines form concentric circles around the wire.
- The circles are centered on the wire, with the wire passing through the center of each circle.
- The magnetic field lines are perpendicular to the wire at every point.
- The strength of the magnetic field decreases as you move farther away from the wire.

Visualization:
To visualize the magnetic field around a long straight wire, imagine the wire passing through the center of a piece of paper. The magnetic field lines would be like concentric circles around the wire, as if the wire was the center of a dartboard.

Right-Hand Rule:
To determine the direction of the magnetic field lines, you can use the right-hand rule. Wrap your right hand around the wire with your thumb pointing in the direction of the current flow. Your fingers will then curl in the direction of the magnetic field lines, which are the concentric circles.

Applications:
The magnetic field around a long straight wire has practical applications, such as in electromagnets, solenoids, and electric motors. Understanding the direction and strength of the magnetic field is essential for designing and manipulating these devices.

Summary:
In summary, the correct description of the magnetic field near a long straight wire is that it consists of concentric circles centered on the wire. The magnetic field lines are perpendicular to the wire and decrease in strength as you move farther away from the wire.
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
Explore Courses for Class 10 exam

Top Courses for Class 10

Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer?
Question Description
Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Which of the following correctly describes the magnetic field near a long straight wire ?a)The field consists of straight lines perpendicular to the wire.b)The field consists of straight lines parallel to the wire.c)The field consists of radial lines originating from the wire.d)The field consists of concentric circles centred on the wire.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 10 tests.
Explore Courses for Class 10 exam

Top Courses for Class 10

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