Which one of the following figures represents the radial electric field distribution E_R caused by a spherical cloud of electrons with a volume charge density, ρ = -3ρ_0 for 0 ≤ R ≤ a (both ρ_0, a are positive and R is the radial distance) and ρ = 0 for R > a?

GATE 2025 Electrical Engineering Q25 — Electrical Engineering

GATE 2025Set MasterQ25MCQanswer keyexplanation soonmedium

Electrical Engineering · Electromagnetic Fields

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Figure from the original GATE 2025 paper. (IIT Roorkee archive)

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Recurring concept

Electromagnetic Fields has appeared in GATE Electrical Engineering 3 times across 3 years (2023, 2025, 2026).

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electric fieldcharge densityspherical cloudelectromagnetics