Kelvi

A spherical conductor of radius $10$ cm has a charge of $3.2 \times 10^{-7}$ C distributed uniformly. What is the magnitude of the electric field at a point $15$ cm from the center of the sphere? $\newline (\frac{1}{4\pi\varepsilon_0} = 9 \times 10^9 { N m}^2{ C}^{-2})$

easy

Electric Charges and Fields

2020

physics

$1.28 \times 10^5$ N/C

$1.28 \times 10^6$ N/C

$1.28 \times 10^7$

Explanation

To solve this problem, we will use the formula for the electric field due to a point charge, $\\ E = \frac{kQ}{r^2},$ where $k = \frac{1}{4\pi\varepsilon_0}$

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