Ques. 31AIPMT 2003
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
Previous year questions with solutions · 2000 – 2026
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2025 | 2 | 1 | 2 | 4.44% ▲ 344.4% vs last year |
| 2024 | 1 | 2 | 0.5 | 1.00% ▼ 75% vs last year |
| 2023 | 2 | 1 | 2 | 4.00% ▲ 100% vs last year |
| 2022 | 2 | 2 | 1 | 2.00% same as last year |
| 2021 | 1 | 1 | 1 | 2.00% ▼ 10% vs last year |
| 2020 | 1 | 1 | 1 | 2.22% ▼ 66.7% vs last year |
| 2019 | 3 | 1 | 3 | 6.67% ▲ 200% vs last year |
| 2018 | 1 | 1 | 1 | 2.22% same as last year |
| 2017 | 1 | 1 | 1 | 2.22% same as last year |
| 2016 | 2 | 2 | 1 | 2.22% ▲ 100% vs last year |
| 2015 | 1 | 2 | 0.5 | 1.11% ▼ 50% vs last year |
| 2013 | 2 | 2 | 1 | 2.22% ▲ 77.8% vs last year |
| 2012 | 1 | 2 | 0.5 | 1.25% ▼ 1.3% vs last year |
| 2011 | 1 | 2 | 0.5 | 1.27% ▼ 65.8% vs last year |
| 2010 | 3 | 2 | 1.5 | 3.70% ▲ 74.1% vs last year |
| 2008 | 1 | 1 | 1 | 2.13% ▼ 50% vs last year |
| 2007 | 2 | 1 | 2 | 4.26% ▲ 112.8% vs last year |
| 2006 | 1 | 1 | 1 | 2.00% ▼ 8% vs last year |
| 2004 | 1 | 1 | 1 | 2.17% ▼ 43.5% vs last year |
| 2003 | 2 | 1 | 2 | 3.85% ▼ 5.8% vs last year |
| 2001 | 2 | 1 | 2 | 4.08% ▼ 8.2% vs last year |
| 2000 | 2 | 1 | 2 | 4.44% |
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
A dipole of dipole moment p is placed in uniform electric field E then torque acting on it is given by
A charge Q is placed at the centre of a cube, the flux coming out from each face will be
A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is
Electric field at centre O of semicircle of radius a having linear charge density is given as [figure]