Question

If the current in a wire is directed upward, what is the direction of the magnetic field produced by the current?

Answer 1

If the direction of the current is upward, then the direction of magnetic field would be "Counter-clockwise"

In short, Your Answer would be Option B

Hope this helps!

Answer 2

Answer:

B. counterclockwise

Explanation:

We can solve the problem by using the right-hand rule:

- put your thumb finger of the right hand in the same direction of the current in the wire (upward)

- wrap the other fingers around the thumb

- the direction of the other fingers will give the direction of the magnetic field lines

By doing these steps, we see that the other fingers form concentric circles in a counterclockwise direction (seen from above), so this is the direction of the magnetic field lines.