The symbol for electric flux is Φ (Phi).
Electric flux is a scalar quantity that represents the measure of the electric field passing through a given surface. It is a fundamental concept in electromagnetism and is used in Gauss's law to relate the electric field to the charge distribution. The electric flux through an open surface, such as S₁, is typically denoted by Φ.
Electric flux has an SI unit of newton-meters squared per coulomb (N⋅m²/C).
