Point charges Q and -2Q are placed at some distance apart. If electric field at location o

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1. Electric Charges and Fields

medium

The point charges $Q$ and $-2Q$ are placed at some distance apart. If the electric field at the location of $Q$ is $\vec E$ , then the electric field at the location of $-2Q$ will be :

A

$-\frac{\vec E}{2}$

B

$-\frac{3 \vec E}{2}$

C

$+\frac{\vec E}{2}$

D

$-2\,\vec E$

Solution

$E_{A}=E=\frac{K 2 Q}{r^{2}}$

$E_{B}=\frac{K Q}{r^{2}}=\frac{E}{2}$

Standard 12

Physics

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