A conductor carries a current of $3.0\,\text{A}$. The current is then altered to $6.0\,\text{A}$ in the opposite direction. What effect will this have on the magnetic field surrounding the conductor?
- AIt decreases and it acts in the opposite direction.
- BIt decreases and it acts in the same direction.
- CIt increases and it acts in the opposite direction.
- DIt increases and it acts in the same direction.