Published by:
CGP EDU Academic Team
Published on: August 11, 2026
PART-I PHYSICS
SECTION-A
A uniformly charged disc of radius 
having surface charge density 
is placed in the xy plane with its center at the origin. Find the electric field intensity along the 
-axis at a distance 
from origin:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Consider a small ring of radius 
and thickness 
on disc.
area of elemental ring on disc
charge on this ring 
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