[图]A、高斯面内电荷的代数和为零时,高斯面上各点场强...
A、高斯面内电荷的代数和为零时,高斯面上各点场强一定处处为零; when the algebraic sum of the charges in the gaussian plane is zero, the field strength of each point on the gaussian plane must be zero everywhere;
B、高斯面内的电荷代数和为零时,高斯面上各点场强不一定处处为零; when the algebraic sum of charges in the gaussian plane is zero, the field strength of each point on the gaussian plane is not necessarily zero everywhere;
C、高斯面内的电荷代数和不为零时,高斯面上各点场强一定处处不为零; when the algebraic sum of charges in the gaussian plane is not zero, the field strength of each point on the gaussian plane must not be zero everywhere;
D、高斯面内无电荷时,高斯面上各点场强一定为零; when there is no charge in the gaussian surface, the field strength of each point on the gaussian surface must be zero;