For the given diagram E = 4 × 10³ N/C, the net flux through the cube of side x = 1 cm, placed x = 1 cm from the origin as shown is:
(E is acting towards positive x-axis and Φ = 1)
1
2 × 10⁻⁶ Wb
2
1 × 10⁻⁶ Wb
3
3 × 10⁻⁶ Wb
4
4 × 10⁻⁶ Wb