What is the number of electric lines lines of force that radiate outwards from one coulomb of charge in vacumm ?

Explanation

To determine the number of electric lines of force that radiate outwards from one coulomb of charge in a vacuum, we can use Gauss's law, which relates electric flux to charge. Here’s the step-by-step solution:

### Step 1: Understand the Concept of Electric Flux
Electric flux (Φ) through a surface is defined as the total electric field (E) passing through that surface. It can also be expressed in terms of charge (Q) enclosed by the surface and the permittivity of free space (ε₀).

### Step 2: Use Gauss's Law
According to Gauss's law, the electric flux (Φ) through a closed surface is given by the formula:
\[
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