10. A conducting sphere of radius 0.01 m has a charge of 1.0 × 10⁻⁹ C deposited on it. The magnitude of the electric field in N/C just outside the surface of the sphere is:
詳解 (共 1 筆)
助人為本
詳解 #7414375
所以這題只要了解導體球內部的電場為0
而導體外的電場公式為

所以把題目給的數值代入即可