Physics · 2020
JEE Main · 8 January 2020, Shift 1 · Q10
Three charged particles A, B and C with charges -4 q, 2 q and -2 q are present on the circumference of a circle of radius d. The charged particles A,…
Three charged particles A, B and C with charges $\displaystyle -4 q, 2 q$ and $\displaystyle -2 q$ are present on the circumference of a circle of radius d . The charged particles A, C and centre O of the circle formed an equilateral triangle as shown in figure. Electric field at O along $\displaystyle x$-direction is :
Official answer
(4)
$\displaystyle \frac{\sqrt{3} q}{\pi \epsilon_0 d^2}$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.