The potential at a point $x$ (measured in $μ\ m$) due to some charges situated on the $ x$-axis is given by $V(x)$ =$\frac{{20}}{{{x^2} - 4}}$ $volt$ The electric field $E$ at $x = 4\ μ m$ is given by
The potential at a point $x$ (measured in $μ\ m$) due to some charges situated on the $ x$-axis is given by $V(x)$ =$\frac{{20}}{{{x^2} - 4}}$ $volt$ The electric field $E$ at $x = 4\ μ m$ is given by
- [AIEEE 2007]
- A
$\frac{{10}}{9}$ $\frac{V}{{\mu m}}$ and in the $+ve\ x$ direction
- B
$\;\frac{5}{3}$ $\frac{V}{{\mu m}}$ and in the $-ve\ x$ direction
- C
$\;\frac{5}{3}$ $\frac{V}{{\mu m}}$ and in the $+ve\ x$ direction
- D
$\;\frac{{10}}{9}$ $\frac{V}{{\mu m}}$ and in the $-ve\ x$ direction
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- [AIPMT 2015]
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