MCQ
A metallic ring is uniformly charged as shown in figure. $AC$ and $BD$ are two mutually perpendicular diameters. Electric field due to arc $A B$ to '$O$' is '$E$' is magnitude. What would be the magnitude of electric field at '$O$' due to arc $ABC$ ?
Image
  • A
    $2 E$
  • $\sqrt{2} E$
  • C
    $E / 2$
  • D
    Zero

Answer

Correct option: B.
$\sqrt{2} E$
(B) $\sqrt{2} E$
Image

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