Find out electric filed intensity at point $A(1,0,2)$ due to a point charge $-20\,\mu C$ situated at point $B(0, 2,1)$
Find out electric filed intensity at point $A(1,0,2)$ due to a point charge $-20\,\mu C$ situated at point $B(0, 2,1)$
- A
$-22.5\times10^3 (\hat i - \sqrt 2\hat j + \hat k)$
- B
$8.5\times10^3 (\hat i + \sqrt 2\hat j + \hat k)$
- C
$22.5\times10^3 (\hat i + \sqrt 2\hat j - \hat k)$
- D
$8.5\times10^3 (\hat i - \sqrt 2\hat j + \hat k)$
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Suppose a uniformly charged wall provides a uniform electric field of $2 \times 10^4 \mathrm{~N} / \mathrm{C}$ normally. A charged particle of mass $2 \mathrm{~g}$ being suspended through a silk thread of length $20 \mathrm{~cm}$ and remain stayed at a distance of $10 \mathrm{~cm}$ from the wall. Then the charge on the particle will be $\frac{1}{\sqrt{\mathrm{x}}} \ \mu \mathrm{C}$ where $\mathrm{x}=$ ____________. use $g=10 \mathrm{~m} / \mathrm{s}^2$ ]
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- [JEE MAIN 2024]
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