Why cannot two magnetic lines of forces due to a bar magnet cross each other ?

Explanation

To answer the question, "Why cannot two magnetic lines of forces due to a bar magnet cross each other?", we can break down the explanation into a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding Magnetic Field Lines**: Magnetic field lines are visual representations of the magnetic field around a magnet. They indicate the direction and strength of the magnetic field. The lines emerge from the north pole of the magnet and enter the south pole.

2. **Concept of Tangents**: At any given point in a magnetic field, the direction of the magnetic field is represented by the tangent to the magnetic field line at that point. This means that if you draw a tangent line to a magnetic field line, it shows the direction of the magnetic field at that specific location.

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