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1. Electric Charges and Fields
easy
Total electric flux coming out of a unit positive charge put in air is
A
${\varepsilon _0}$
B
$\varepsilon _0^{ - 1}$
C
${(4p{\varepsilon _0})^{ - 1}}$
D
$4\pi {\varepsilon _0}$
Solution
(b) Total flux coming out from unit charge $ = \vec E.d\vec s = \frac{1}{{{\varepsilon _0}}} \times 1 = \varepsilon _0^{ – 1}$
Standard 12
Physics
