(a) The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. Justify. (b) A current carrying straight wire AB is shown in the given diagram. Out of X, Y and Z on which point will the strength of magnetic field be maximum and why?
(a) The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. Justify. (b) A current carrying straight wire AB is shown in the given diagram. Out of X, Y and Z on which point will the strength of magnetic field be maximum and why?
(a) The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. This is because the direction of the magnetic field lines depends on the direction of the current flow in the wire. When the wire is straight, the magnetic field lines are concentric circles around the wire. However, when the wire is bent or coiled, the magnetic field lines change direction and form a more complex pattern. (b) The strength of the magnetic field will be maximum at point X. This is because the magnetic field lines are closest to the wire at point X, and the strength of the magnetic field decreases as you move away from the wire.
Marking Scheme
- 1(a) 1 mark for explaining how the pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire.
- 2(b) 1 mark for identifying the point where the strength of the magnetic field is maximum and explaining why.
Hint
Use the right-hand thumb rule to determine the direction of the magnetic field lines around a straight wire. Consider the distance between the wire and the point to find the point where the strength of the magnetic field is maximum.
Quick Oral Answer
The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. The strength of the magnetic field will be maximum at point X because the magnetic field lines are closest to the wire at that point.
Analysis & Explanation
This question requires the student to understand the concept of magnetic fields and how they are affected by the shape of a current-carrying wire. The student needs to apply the right-hand thumb rule to determine the direction of the magnetic field lines around a straight wire and then consider the distance between the wire and the point to find the point where the strength of the magnetic field is maximum. This question assesses the student's ability to analyze and apply the concepts of magnetic fields to solve problems.
Common Mistakes
- 1not considering the distance between the wire and the point when finding the point where the strength of the magnetic field is maximum
Interesting Facts
The magnetic field around a current-carrying wire can be used to create an electromagnet, which is a type of magnet that is made by wrapping a coil of wire around a core material and passing an electric current through it.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2026?
This question carries 3 marks in the CBSE Class 10 Science 2026 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Magnetic Effects of Electric Current" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Magnetic Field" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2026 paper?
This is a Short Answer question from Section C in the CBSE Class 10 Science 2026 paper.