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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] medium exam-ready
Two magnetic field lines can never intersect each other because: (A) Magnetic field has no physical existence at the point of intersection (B) At a point of intersection, the compass needle would have to point in two directions simultaneously, which is impossible (C) Field lines always form closed loops (D) The magnetic field is zero at the point of intersection
  1. A Magnetic field has no physical existence at the point of intersection
  2. B At a point of intersection, the compass needle would have to point in two directions simultaneously, which is impossible
  3. C Field lines always form closed loops
  4. D The magnetic field is zero at the point of intersection
Generated by claude-sonnet-4-6 · 2026-06-26 01:10 · grounding rag
Model Answer

(B) At a point of intersection, the compass needle would have to point in two directions simultaneously, which is impossible.

Source: Magnetic Field and Field Lines, Chapter 12

Explanation

The textbook explicitly states: "No two field-lines are found to cross each other. If they did, it would mean that at the point of intersection, the compass needle would point towards two directions, which is not possible." Options A and D are incorrect — the field exists but has a unique direction. Option C (closed loops) is a property of field lines, not the reason they don't intersect.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.