NEET UG · Physics · Electric Charges and Fields

Gauss's Law: NEET previous year questions

5 questions in ten years of NEET, in 4 of 10 papers. Pattern: Most years. Here is how it is asked and which ideas come back.

Asked in 10 years: 5; about 0.5 per paper
Years asked: 4/10; last asked 2026
Chance of a question next paper: 50%; historical rate, how we compute it
Weighted estimate: 0.5; model; history: 0.5 a paper on average, typically 0–1

Key findings

01
Asked in 4 of 10 papers, 5 questions in all: #149 of 204 topics by ten-year total. It comes back every 2.3 years on average.
02
100% of its questions since 2018 tested an idea never asked before; none repeated an idea from the year before.
03
No idea in this topic has been asked twice: every question tested something new.
04
NEET has asked 5 of the 86 ideas in this topic; 77 have never been asked, directly or indirectly.
05
Mostly asked as one-line MCQ (60%); 60% easy, 0% hard.

Questions per year

Up to 2023: 0.6; per paper
Since 2024: 0.3; -0.2
Usual gap: 2.3 yrs; between papers asking it
Swing: ±0.7; questions, year to year

How it is asked

Difficulty, format and skill

Across all 5 questions on Gauss's Law since 2017.

Difficulty

QUESTIONS

Easy3 · 60%
Medium2 · 40%
Hard0 · 0%

Format

One-line MCQ · 3 Q60%
Figure-based · 1 Q20%
Numerical · 1 Q20%

Skill tested

Concept · 3 Q60%
Calculation · 1 Q20%
Multi-step · 1 Q20%

Repeats

New idea, or one asked before?

Each column is a paper. Blue questions tested an idea NEET had not asked before; navy ones went back to an idea from an earlier paper. 2017 is the first paper, so everything in it counts as new.

’17’18’19’20’21’22’23’24’25’26

Idea asked for the first time
Idea asked in an earlier paper

Coverage of the topic

NEET has asked 5 of the 86 ideas in this topic. 77 have never been asked yet.

Asked directly5 · 6%
Touched inside another question4 · 5%
Never asked77 · 90%

Ideas come from Lumi’s syllabus map of NCERT. A never-asked idea is not a safe skip: most new questions come from exactly these.

Drill down

Idea, year, question

Every idea NEET tested in this topic, with its ten papers. Open one to read the questions.

ideaAskedShareYears’17’18’19’20’21’22’23’24’25’26

1 · 20%20%1/10
- 2020 · Q151
  A spherical conductor of radius 10 cm has a charge of $3.2\times10^{-7}$ C distributed uniformly. What is the magnitude of electric field…
  easyNumericalNew idea
1 · 20%20%1/10
1 · 20%20%1/10
1 · 20%20%1/10
1 · 20%20%1/10

Squares are the ten papers, 2017 to 2026; darker means more questions. Share is of the level above.

Ideas

Every idea inside this topic

5 different ideas were tested; none came more than once. Gauss Law Statement is the foundation for 71 other ideas in the syllabus.

Off-Center Charge in Cavity1×
field of charge in conductor cavity
Figure-based · 6% next
Gauss Law Statement1×
true statement selection on zero net flux
One-line MCQ · 4% next · foundation for 71
Field of a Solid Conducting Sphere1×
numerical
Numerical · 4% next
Field of Line Charge1×
numerical
One-line MCQ · 4% next · foundation for 6
Field of Spherical Shell1×
variation of field with distance for charged body
One-line MCQ · 4% next · foundation for 6

Idea	Times	Format	Chance next	Foundation for
Off-Center Charge in Cavityfield of charge in conductor cavity	1	Figure-basedConcept	6%	–
Gauss Law Statementtrue statement selection on zero net flux	1	One-line MCQConcept	4%	71 ideas
Field of a Solid Conducting Spherenumerical	1	NumericalCalculation	4%	–
Field of Line Chargenumerical	1	One-line MCQMulti-step	4%	6 ideas
Field of Spherical Shellvariation of field with distance for charged body	1	One-line MCQConcept	4%	6 ideas

Chance next is the historical rate at which an idea with this record came back in the following paper. It is low for every idea, which is why learning the topic beats memorising past questions. All repeated ideas

Every question

Gauss's Law questions, year by year

The opening words of each question as it appeared in the official paper, with the idea it tested.

NEET 20261 question

Q33
A point charge Q is placed inside a cavity within a solid isolated conducting sphere. Consider points A, B and C as shown in the figure,…
Idea: Off-Center Charge in Cavity
New ideaMediumFigure-based · figure

NEET 20231 question

Q17
If $\oint_s \vec{E}\cdot\vec{dS}=0$ over a surface, then :
Idea: Gauss Law Statement
New ideaEasyOne-line MCQ

NEET 20201 question

Q151
A spherical conductor of radius 10 cm has a charge of $3.2\times10^{-7}$ C distributed uniformly. What is the magnitude of electric field…
Idea: Field of a Solid Conducting Sphere
New ideaEasyNumerical

NEET 20192 questions

Q25
A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre :
Idea: Field of Spherical Shell
New ideaEasyOne-line MCQ
Q36
Two parallel infinite line charges with linear charge densities +λ C/m and −λ C/m are placed at a distance of 2R in free space. What is…
Idea: Field of Line Charge
New ideaMediumOne-line MCQ

Questions from the official NEET UG papers published by NTA (CBSE before 2019). Topic and idea tags, counts and notes are Lumi’s.