Wed May 30, 2012 By: Shrawani Misra

How is electric flux a scalar quantity?

Expert Reply
Wed May 30, 2012
Electric flux is a scalar quantity, because it's the dot product of two vector quantities, electric field and the perpendicular differential area. 

This is written in terms of differentials as: 

d?E = E ? dA

where d?E is the differential electric flux, E is the electric field, and dA is the perpendicular differential area. Bolded quantities are vectors.

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