a metal sample carrying a current along X-axis with density Jx is subjected to a magnetis field Bz(along z-axis). the electric field Ey developed along Y-axis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit.
1. m²/As
2. m²/A
3.As/m³
4. m³/As
Ey = kJxBz
K = Ey/JxBz
Ey = BzC
[Electric field = magnetic
field × speed of light]
Ey/Bz = C
K = m×m2/s×A
K = M3/AS .
; Therefore the correct answer is option 4 .