31
An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r. The Coulomb force F between the two is
- K e2r2 r
- -K e2r3 r
- K e2r3 r
- -K e2r2 r
AIPMT 2003
Electric Charges and Fields
Previous year questions with solutions · 2000 – 2026
35Questions
26Papers covered
0% ↓100%Weightage in 2026
’00
’01
’03
’04
’06
’07
’08
’10
’11
’12
’13
’15
’16
’17
’18
’19
’20
’21
’22
’23
’24
’25
Year-wise statistics questions · papers · average per paper · weightage
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2025 | 2 | 1 | 2 | 4.44% ↑344.4% |
| 2024 | 1 | 2 | 0.5 | 1.00% ↓75% |
| 2023 | 2 | 1 | 2 | 4.00% ↑100% |
| 2022 | 2 | 2 | 1 | 2.00% →0% |
| 2021 | 1 | 1 | 1 | 2.00% ↓10% |
| 2020 | 1 | 1 | 1 | 2.22% ↓66.7% |
| 2019 | 3 | 1 | 3 | 6.67% ↑200% |
| 2018 | 1 | 1 | 1 | 2.22% →0% |
| 2017 | 1 | 1 | 1 | 2.22% →0% |
| 2016 | 2 | 2 | 1 | 2.22% ↑100% |
| 2015 | 1 | 2 | 0.5 | 1.11% ↓50% |
| 2013 | 2 | 2 | 1 | 2.22% ↑77.8% |
| 2012 | 1 | 2 | 0.5 | 1.25% ↓1.3% |
| 2011 | 1 | 2 | 0.5 | 1.27% ↓65.8% |
| 2010 | 3 | 2 | 1.5 | 3.70% ↑74.1% |
| 2008 | 1 | 1 | 1 | 2.13% ↓50% |
| 2007 | 2 | 1 | 2 | 4.26% ↑112.8% |
| 2006 | 1 | 1 | 1 | 2.00% ↓8% |
| 2004 | 1 | 1 | 1 | 2.17% ↓43.5% |
| 2003 | 2 | 1 | 2 | 3.85% ↓5.8% |
| 2001 | 2 | 1 | 2 | 4.08% ↓8.2% |
| 2000 | 2 | 1 | 2 | 4.44% |
32
A dipole of dipole moment p is placed in uniform electric field E then torque acting on it is given by
- = p E
- = p E
- = p + E
- = p - E
AIPMT 2001
33
A charge Q is placed at the centre of a cube, the flux coming out from each face will be
- Q6 0 10-6
- Q6 0 10-3
- Q24 0
- Q8 0
AIPMT 2001
34
A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is
- Q6 0
- Q8 0
- Q 0
- Q2 0
AIPMT 2000
35
Electric field at centre O of semicircle of radius a having linear charge density is given as [figure]
- 2 0 a
- 0 a
- 2 0 a
- 0 a
AIPMT 2000