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Answer the following: State Gauss' law...

Answer the following:
State Gauss' law in electrostatics. Derive an expression for the electric field due to an infinitely long straight uniformly charged wire.

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### Step-by-Step Solution **Step 1: State Gauss's Law in Electrostatics** Gauss's Law states that the total electric flux (Φ_E) through a closed surface is equal to the charge (Q) enclosed by that surface divided by the permittivity of free space (ε₀). Mathematically, it can be expressed as: \[ \Phi_E = \oint \vec{E} \cdot d\vec{A} = \frac{Q}{\epsilon_0} ...
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