NEET UG · Physics · Moving Charges and Magnetism

Magnetic Force on Charges and Currents: NEET previous year questions

10 questions in ten years of NEET, in 6 of 10 papers. Pattern: Every year. Here is how it is asked and which ideas come back.

Asked in 10 years: 10; about 1.0 per paper
Years asked: 6/10; last asked 2025
Chance of a question next paper: 64%; historical rate, how we compute it
Weighted estimate: 0.9; model; history: 1.0 a paper on average, typically 0–2

Key findings

01
Asked in 6 of 10 papers, 10 questions in all: #79 of 204 topics by ten-year total. It comes back every 1.6 years on average. Last asked in 2025.
02
67% of its questions since 2018 tested an idea never asked before; none repeated an idea from the year before.
03
The most repeated idea is Charged Particle in a Magnetic Field, asked 2 times (2019, 2025), usually as “numerical”.
04
NEET has asked 0 of the 8 ideas in this topic; 0 have never been asked, directly or indirectly.
05
Mostly asked as numerical (80%); 20% easy, 10% hard.

Questions per year

Up to 2023: 1.0; per paper
Since 2024: 1.0; 0.0
Usual gap: 1.6 yrs; between papers asking it
Swing: ±1.0; questions, year to year

How it is asked

Difficulty, format and skill

Across all 10 questions on Magnetic Force on Charges and Currents since 2017.

Difficulty

QUESTIONS

271

Easy2 · 20%
Medium7 · 70%
Hard1 · 10%

Format

Numerical · 8 Q80%
One-line MCQ · 2 Q20%

Skill tested

Calculation · 7 Q70%
Multi-step · 2 Q20%
Application · 1 Q10%

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 0 of the 8 ideas in this topic. 0 have never been asked yet.

Asked directly0 · 0%
Touched inside another question8 · 100%
Never asked0 · 0%

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

Repeated2 · 20%20%2/10
- 2025 · Q18
  A model for quantized motion of an electron in a uniform magnetic field $B$ states that the flux passing through the orbit of the electron…
  hardOne-line MCQ
- 2019 · Q3
  Ionized hydrogen atoms and α-particles with same momenta enters perpendicular to a constant magnetic field, B. The ratio of their radii of…
  mediumNumericalNew idea
Repeated2 · 20%20%2/10
Repeated2 · 20%20%2/10
1 · 10%10%1/10
1 · 10%10%1/10
1 · 10%10%1/10
1 · 10%10%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

7 different ideas were tested; 3 came more than once.

Charged Particle in a Magnetic Field2×
numerical
Numerical · 6% next
Magnetic Moment of a Current Loop2×
magnetic moment of coil from wire length
Numerical · 6% next
Force on a Current-Carrying Conductor2×
numerical
Numerical · 6% next
Crossed E and B Fields1×
numerical
Numerical · 6% next
Magnetic Force on a Moving Charge1×
numerical
Numerical · 4% next
Moving-Coil Galvanometer Sensitivity1×
numerical
Numerical · 4% next
Torque and Energy of a Current Loop1×
numerical
Numerical · 4% next

Idea	Times	Format	Chance next	Foundation for
Charged Particle in a Magnetic Fieldnumerical	2	NumericalCalculation	6%	–
Magnetic Moment of a Current Loopmagnetic moment of coil from wire length	2	NumericalCalculation	6%	–
Force on a Current-Carrying Conductornumerical	2	NumericalCalculation	6%	–
Crossed E and B Fieldsnumerical	1	NumericalApplication	6%	–
Magnetic Force on a Moving Chargenumerical	1	NumericalCalculation	4%	–
Moving-Coil Galvanometer Sensitivitynumerical	1	NumericalCalculation	4%	–
Torque and Energy of a Current Loopnumerical	1	NumericalCalculation	4%	–

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

Magnetic Force on Charges and Currents questions, year by year

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

NEET 20253 questions

Q3
An electron (mass $9\times10^{-31}$ kg and charge $1.6\times10^{-19}$ C) moving with speed c/100 (c = speed of light) is injected into a…
Idea: Crossed E and B Fields
New ideaMediumNumerical
Q12
A 2 amp current is flowing through two different small circular copper coils having radii ratio 1:2. The ratio of their respective…
Idea: Magnetic Moment of a Current Loop
EasyNumerical
Q18
A model for quantized motion of an electron in a uniform magnetic field $B$ states that the flux passing through the orbit of the electron…
Idea: Charged Particle in a Magnetic Field
HardOne-line MCQ

NEET 20231 question

Q47
A wire carrying a current $I$ along the positive $x$ -axis has length $L$ . It is kept in a magnetic field…
Idea: Force on a Current-Carrying Conductor
EasyNumerical

NEET 20212 questions

Q38
A uniform conducting wire of length 12a and resistance 'R' is wound up as a current carrying coil in the shape of, (i) an equilateral…
Idea: Magnetic Moment of a Current Loop
New ideaMediumOne-line MCQ
Q47
In the product $\vec{F} = q(\vec{v}\times\vec{B})$ $= q\vec{v}\times(B\hat{i}+B\hat{j}+B_0\hat{k})$ For q = 1 and…
Idea: Magnetic Force on a Moving Charge
New ideaMediumNumerical

NEET 20191 question

Q3
Ionized hydrogen atoms and α-particles with same momenta enters perpendicular to a constant magnetic field, B. The ratio of their radii of…
Idea: Charged Particle in a Magnetic Field
New ideaMediumNumerical

NEET 20182 questions

Q26
A metallic rod of mass per unit length 0.5 kg m $^{-1}$ is lying horizontally on a smooth inclined plane which makes an angle of 30° with…
Idea: Force on a Current-Carrying Conductor
New ideaMediumNumerical
Q29
Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is…
Idea: Moving-Coil Galvanometer Sensitivity
New ideaMediumNumerical

NEET 20171 question

Q5
A 250 - Turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 $\mu$ A and subjected to a magnetic field of…
Idea: Torque and Energy of a Current Loop
MediumNumerical

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