Final Answer:
The direction of the magnetic field B at point C is circumferential, encircling the wire in a counterclockwise manner when viewed from above.
Step-by-step explanation:
The direction of the magnetic field (B) at point C, influenced by a current-carrying wire along the x-axis passing through the origin, follows the right-hand rule. As per the right-hand rule for a wire carrying current in the positive x-direction, the magnetic field lines encircle the wire.
When determining the direction at point C, a counterclockwise circular pattern is formed around the wire when viewed from above. This occurs due to the convention that the direction of the magnetic field around a current-carrying wire aligns itself in a circular path concentric with the wire's position.
This pattern follows the principles of electromagnetism, specifically the Ampère's law and the Biot-Savart law, which illustrate the magnetic field's direction and strength around a current-carrying conductor.
Here's a complete question"What is the direction of the magnetic field B at point C located in a region influenced by a current-carrying wire positioned along the x-axis and passing through the origin O? The wire carries a current I in the positive x-direction."