Magnetic repulsion between like poles

Steps:

• Identify setup: Two bar magnets with N-poles facing each other.
• Recall rule: Like poles repel, so field lines emerge from each N-pole and diverge outward.
• Analyze patterns: Look for diagram showing lines curving away without connecting between poles.
• Match to options: Select diagram with repelling, non-converging lines in the gap.

Why B is correct:

• It shows field lines diverging from both N-poles and curving outward, following the principle that magnetic field lines repel between like poles.

Why the others are wrong:

• A: Depicts converging lines as if attracting, incorrect for like poles.
• C: Shows uniform parallel lines, not matching repulsion pattern.
• D: Illustrates looping connection between poles, violating repulsion rule.

Final answer: B