AP® Physics 1 & 2

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Moderate

Electric Field Balanced

APPH12-Z0Y4LY

Two charged spheres are located along the x-axis as shown below. The first charged sphere ($S_1$) is located at $30\text{ cm}$ and has a charge of $+2\text{ C}$. The second charged sphere ($S_2$) is located at $70\text{ cm}$ and has a charge of $+18\text{ C}$.

Laura L. Lang. Created for Albert.io. Copyright 2016. All rights reserved.

Where along the $x$-axis is the electric field due to the two charged spheres zero?

A

At $A$ ($10\text { cm}$ from the $y$-axis).

B

At $B$ ($40\text { cm}$ from the $y$-axis).

C

At $C$ ($60\text { cm}$ from the $y$-axis).

D

At $D$ ($90\text { cm}$ from the $y$-axis).