Define the term .electric flux.. Write its SI units. What is the flux due to electric field `vec(E)=3xx10^(3) hat(i) N//C` through a square of side `10` cm, when it is held normal to `vec(E)` ?

Explanation

### Step-by-Step Solution

1. **Define Electric Flux**:
Electric flux (Φ) is defined as the total number of electric field lines passing through a given surface area. Mathematically, it can be expressed as the dot product of the electric field intensity vector (E) and the area vector (A):
\[ \Phi = \vec{E} \cdot \vec{A} = EA \cos \theta \]
where:
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