21) Gauss's law states that

the total electric field flux coming out of a closed surface equals the net charge enclosed within the volume divided by??₀

the total electric field flux coming out of a closed surface equals the charge enclosed within the volume divided by??₀

the total electric field flux coming out of a closed surface equals the net charge enclosed within the volume

the total electric field flux coming out of an open surface equals the net charge enclosed within the volume divided by??₀

Answer is:

the total electric field flux coming out of a closed surface equals the net charge enclosed within the volume divided by??₀

Explanation:

use Gauss Theorem