CBSE 2024 · Region 1 · Set 1 · Q1 · 1 mark
A thin plastic rod is bent into a circular ring of radius R . It is uniformly charged with charge density $\displaystyle \lambda$. The magnitude of the electric field at its centre is :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Zero
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.