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Question

Number of electric lines of force emanating from $1 C$ of positive charge in vacuum is :

A

8.85 \times 10^{- 12}

B

9 \times 10^{9}

C

1 / 4 π \times 9 \times 10^{9}

D

1.13 \times 10^{11}

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Solution

Verified by Toppr

$ϕ$ from $1 C$ of charge is $= \frac{Q_{e n c l o s e d}}{ϵ_{o}}$
$= \frac{1}{8.8501 \times 10^{- 12}}$

$= 1.129 \times 10^{11}$

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