Concept:The direction of magnetic field lines around a straight current-carrying conductor is determined by the Right-Hand Grip Rule. Perspective completely changes whether it appears clockwise or anticlockwise.
Formula:$$ \text{Right-Hand Grip Rule} $$
Solution:- Point your right thumb in the direction of the current (bottom to top, i.e., upwards).
- Your fingers curl around the wire in an anticlockwise direction if you were looking from the top down.
- However, the question asks for the perspective from below the conductor looking upwards.
- When viewed from below, an anticlockwise curl spatially translates to a clockwise observation.
Why other options are incorrect:Option C is the perspective from above. Options B and D are impossible because the magnetic field forms closed loops around the wire, not straight lines parallel to it.
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