Learn

Friday, 9 October

NEET UG 2020 · Physics · Question 151

NEET 2020 Physics, question 151

Question 151 of the NEET 2020 paper (code E1) is a Physics question from Electric Charges and Fields. Its idea, Field of a Solid Conducting Sphere, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q151 · Physics

A spherical conductor of radius 10 cm has a charge of 3.2×10−73.2\times10^{-7} C distributed uniformly. What is the magnitude of electric field at a point 15 cm from the centre of the sphere ?

(14πϵ0=9×109 N m2/C2)\left(\frac{1}{4\pi\epsilon_0} = 9\times10^9\ \mathrm{N\,m^2/C^2}\right)

  1. 11.28×1041.28\times10^4 N/C
  2. 21.28×1051.28\times10^5 N/COfficial answer
  3. 31.28×1061.28\times10^6 N/C
  4. 41.28×1071.28\times10^7 N/C

Official answer: option 2 · NTA final answer key

Same idea

The only question on Field of a Solid Conducting Sphere

No other NEET paper from 2017–2026 tested this exact idea.

Field of a Solid Conducting Sphere: every question and how it was framed

The chapter

Electric Charges and Fields in ten years of NEET

14 questions from 2017–2026, asked in 9 of 10 papers, about 1.4 a paper. Gauss's Law alone had 5.

Chapter analysisStudy this chapterPractise this chapter

Electric Charges and Fields: questions per paper

0241’171’183’191’202’211’222’230’242’251’26