Skip to main content
EasyRe-NEET 2026
+4 / -1
Two infinitely long parallel conducting wires A and B carry currents I and 2I, respectively, in the same direction. The wire A has uniform mass per unit length λ and lies on an insulated floor. The wire B is kept fixed at a height h above the floor. The minimum magnitude of h so that the wire A does not rise from the floor is : [g is the acceleration due to gravity and μ₀ is the permeability of free space]
A
μ₀I²/2πλg
B
μ₀I²/πλg
C
2μ₀I²/πλg
D
4μ₀I²/πλg

Practice Re-NEET 2026 Exams

Full-length mock tests with detailed analytics, rank, and percentile.

Browse Exams