Question

The value of electric flux leaving out from a unit positive charge in vacuum is:

• A. ${\epsilon }_0$
• B. ${\epsilon }_0^{-1}$
• C. $(4\pi {\epsilon }_0{)}^{-1}$
• D. $4\pi {\epsilon }_0$

Answer 1

Answer: (B)

${\epsilon }_0^{-1}$

${\epsilon }_0^{-1}$

Total emerging out the flux from unit charge

By Gauss's law $\varphi =\frac{q}{{\epsilon }_0}$

$q=1C\therefore \varphi =\frac{1}{{\epsilon }_0}=({\epsilon }_0{)}^{-1}$