Previous year questions with solutions · 2000 – 2026
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 7 | 2 | 3.5 | 7.78% ▲ 250% vs last year |
| 2025 | 1 | 1 | 1 | 2.22% ▼ 68.3% vs last year |
| 2024 | 7 | 2 | 3.5 | 7.00% ▲ 75% vs last year |
| 2023 | 2 | 1 | 2 | 4.00% ▼ 33.3% vs last year |
| 2022 | 6 | 2 | 3 | 6.00% ▼ 40% vs last year |
| 2021 | 5 | 1 | 5 | 10.00% ▲ 50% vs last year |
| 2020 | 3 | 1 | 3 | 6.67% ▲ 200% vs last year |
| 2018 | 1 | 1 | 1 | 2.22% ▼ 50% vs last year |
| 2017 | 2 | 1 | 2 | 4.44% ▲ 100% vs last year |
| 2016 | 2 | 2 | 1 | 2.22% ▼ 33.3% vs last year |
| 2015 | 3 | 2 | 1.5 | 3.33% ▼ 50% vs last year |
| 2014 | 3 | 1 | 3 | 6.67% ▲ 200% vs last year |
| 2013 | 2 | 2 | 1 | 2.22% ▼ 55.6% vs last year |
| 2012 | 4 | 2 | 2 | 5.00% ▼ 1.3% vs last year |
| 2011 | 4 | 2 | 2 | 5.06% ▲ 105.1% vs last year |
| 2010 | 2 | 2 | 1 | 2.47% ▼ 59.7% vs last year |
| 2009 | 3 | 1 | 3 | 6.12% ▲ 43.9% vs last year |
| 2008 | 2 | 1 | 2 | 4.26% same as last year |
| 2007 | 2 | 1 | 2 | 4.26% ▲ 6.4% vs last year |
| 2006 | 2 | 1 | 2 | 4.00% ▼ 37.3% vs last year |
| 2005 | 3 | 1 | 3 | 6.38% ▲ 46.8% vs last year |
| 2004 | 2 | 1 | 2 | 4.35% ▲ 126.1% vs last year |
| 2003 | 1 | 1 | 1 | 1.92% ▼ 69.9% vs last year |
| 2002 | 3 | 1 | 3 | 6.38% ▲ 212.8% vs last year |
| 2001 | 1 | 1 | 1 | 2.04% ▼ 8.2% vs last year |
| 2000 | 1 | 1 | 1 | 2.22% |
Consider two uncharged capacitors of equal capacitance 200 pF. One of them is charged by a 100 V supply and disconnected. Now this capacitor is connected to the uncharged capacitor. The amount of electrostatic energy lost in the process is :
Three identical capacitors, P, Q and S, each of the capacitance C, are connected to a battery of voltage V, as shown in the figure. If the energy stored in the capacitor P and total energy stored in the system are UP and UT, respectively, then the ratio UPUT is: [figure]
A 12 pF capacitor is connected to a 50 V battery, the electrostatic energy stored in the capacitor in nJ is
A capacitor of capacitance C = 900 pF is charged fully by 100 V battery B as shown in figure (a). Then it is disconnected from the battery and connected to another uncharged capacitor of capacitance C = 900 pF as shown in figure (b). The electrostatic energy stored by the system (b) is [figure]
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is 'd' and the area of each plate is 'A', the energy stored in the capacitor is : ( 0 = permittivity of free space)
A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system
A capacitor of 2 is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipated is [figure]
A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference V is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is
A series combination of n1 capacitors, each of value C1, is charged by a source of potential difference 4V. When another parallel combination of n2 capacitors, each of value C2, is charged by a source of potential difference V, it has the same (total) energy stored in it as the first combination has. The value of C2, in terms of C1, is then
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is
Two condensers, one of capacity C and other of capacity C/2 are connected to a V-volt battery, as shown in the figure. The work done in charging fully both the condensers is [figure]
Energy per unit volume for a capacitor having area A and separation d kept at potential difference V is given by
A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capacity is connected in parallel to the first capacitor. Then energy stored in each capacitor is