MCQ 11 Mark
The resultant magnetic field at point $\mathbf{P}$ situated midway between two parallel wires (placed horizontally each carrying a steady current I is
- Ain the vertically upward direction.
- Bin the same direction as the current in the wires.
- Cin the vertically downward direction.
- ✓zero
Answer
View full question & answer→Correct option: D.
zero
(D) zero
Explanation:
When two parallel wires carry equal currents in the same direction and are placed horizontally, the magnetic fields produced by these wires cancel each other out at the midpoint between them. This results in a net magnetic field of zero at point P . This phenomenon is due to the equal and opposite directions of the magnetic fields produced by the two wires, leading to their complete cancellation at the midpoint.
Explanation:
When two parallel wires carry equal currents in the same direction and are placed horizontally, the magnetic fields produced by these wires cancel each other out at the midpoint between them. This results in a net magnetic field of zero at point P . This phenomenon is due to the equal and opposite directions of the magnetic fields produced by the two wires, leading to their complete cancellation at the midpoint.