What is the magnitude of the electric field of an infinitely long planar charge with surface charge density (52 mu C/m²) at a height (10) cm above the plane?
a) (5.2 × 10³ , N/C)
b) (52 , N/C)
c) (2.6 × 10⁴ , N/C)
d) (0.52 , N/C)