Electrostatics Question 702
Question: The number of electric lines of force that radiate outwards from one coulomb of charge in vacuum is
Options:
A) $ 1.13\times 10^{11} $
B) $ 1.13\times 10^{10} $
C) $ 0.61\times 10^{11} $
D) $ 0.61\times 10^{9} $
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Here, $ q=1C,{\varepsilon _{0}}=8.85\times {{10}^{-12}}C^{2}{{N}^{-1}}{{m}^{-2}} $
Number of lines of force=Electric force $ =\frac{q}{{\varepsilon _{0}}}=\frac{1}{8.85\times {{10}^{-12}}}=1.13\times 10^{11} $
