2 years ago

The strength of an electrical field decreases as you move farther from the source. True or False

Physics

2 answers:

slamgirl [31]2 years ago

4 0

It is True it decreases

maks197457 [2]2 years ago

3 0

It would be true Because what they said it decreases

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$E = (0.56 \times 10^8 ) r \ \ N/c$

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Given that:

$\rho_o = (10^{-3} ) \ c/m^3$

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To find the electric field for r < R by using Gauss Law

${\oint}E^{\to}* da^{\to} = \dfrac{Q_{enclosed}}{\varepsilon_o} --- (1)$

For r < R

$Q_{enclosed}=(\rho) ( \pi r^2 ) l$

$E*(2 \pi rl)= \dfrac{\rho ( \pi r ^2 l)}{\varepsilon_o}$

$E= \dfrac{\rho ( r)}{2 \varepsilon_o}$

where;

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$E= \dfrac{10^{-3} ( r)}{2 (8.85 \times 10^{-12})}$

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