JEE Physics 2024 Question with Solution

Step-by-step solution

Common mistakes

• Adding magnetic fields without checking direction is a common mistake. The fields due to the two wires at the midpoint must be compared vectorially, not treated as unrelated magnitudes.

• Using the full separation instead of the midpoint distance is incorrect. At point $P$, the distance from each wire is half of $5.0 \, \text{cm}$, so the magnetic field formula must use that distance.