A parallel-plate capacitor has a plate area of 0.2m2 and a plate separation of 0.1mm. To
obtain an electric field of 2.0 × 106 V/m between the plates, the magnitude of the charge on
each plate should be
ANS : 7.1 × 10−6 C
i dont get why, i worked it a 100 time it gave me 3.5 × 10−6 C!!