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Electrostatic Potential and Capacitance

Previous year questions with solutions · 2000 – 2026

74Questions
35Papers covered
7.78% ↑250%Weightage in 2026
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’01
’02
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’05
’06
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Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
2026723.57.78% ↑250%
20251112.22% ↓68.3%
2024723.57.00% ↑75%
20232124.00% ↓33.3%
20226236.00% ↓40%
202151510.00% ↑50%
20203136.67% ↑200%
20181112.22% ↓50%
20172124.44% ↑100%
20162212.22% ↓33.3%
2015321.53.33% ↓50%
20143136.67% ↑200%
20132212.22% ↓55.6%
20124225.00% ↓1.3%
20114225.06% ↑105.1%
20102212.47% ↓59.7%
20093136.12% ↑43.9%
20082124.26% →0%
20072124.26% ↑6.4%
20062124.00% ↓37.3%
20053136.38% ↑46.8%
20042124.35% ↑126.1%
20031111.92% ↓69.9%
20023136.38% ↑212.8%
20011112.04% ↓8.2%
20001112.22%

74 questions · newest paper first · page 3 of 3

61

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]

  1. 14CV2
  2. 34CV2
  3. 12CV2
  4. 2CV2
AIPMT 2007
62

A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates

  1. increases
  2. decreases
  3. does not change
  4. becomes zero
AIPMT 2006
63

An electric dipole of moment p is lying along a uniform electric field E. The work done in rotating the dipole by 90 is

  1. pE
  2. 2pE
  3. pE/2
  4. 2pE
AIPMT 2006
64

A network of four capacitors of capacity equal to C1 = C, C2 = 2C, C3 = 3C and C4 = 4C are connected to a battery as shown in the figure. The ratio of the charges on C2 and C4 is [figure]

  1. 4/7
  2. 3/22
  3. 7/4
  4. 22/3
AIPMT 2005
65

As per the diagram a point charge +q is placed at the origin O. Work done in taking another point charge −Q from the point A [coordinates (0, a)] to another point B [coordinates (a, 0)] along the straight path AB is [figure]

  1. zero
  2. ( qQ4 0 1a2 ) 2a
  3. ( -qQ4 0 1a2 ) 2a
  4. ( qQ4 0 1a2 ) a 2
AIPMT 2005
66

Two charges q1 and q2 are placed 30 cm apart, as shown in the figure. A third charge q3 is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is q34 0k, where k is [figure]

  1. 8q1
  2. 6q1
  3. 8q2
  4. 6q2
AIPMT 2005
67

A bullet of mass 2 g is having a charge of 2 C. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10 m/s ?

  1. 5 kV
  2. 50 kV
  3. 5 V
  4. 50 V
AIPMT 2004
68

An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

  1. 2q.E and minimum
  2. q.E and p.E
  3. zero and minimum
  4. q.E and maximum
AIPMT 2004
69

Three capacitors each of capacity 4 are to be connected in such a way that the effective capacitance is 6 . This can be done by

  1. connecting all of them in series
  2. connecting them in parallel
  3. connecting two in series and one in parallel
  4. connecting two in parallel and one in series
AIPMT 2003
70

Identical charges (-q) are placed at each corner of a cube of side b then electrostatic potential energy of charge (+q) which is placed at centre of cube will be

  1. -4 2q2 0 b
  2. -8 2q2 0 b
  3. -4q2 3 0 b
  4. 8 2q24 0 b
AIPMT 2002
71

Some charge is being given to a conductor. Then its potential is

  1. maximum at surface
  2. maximum at centre
  3. remains same throughout the conductor
  4. maximum somewhere between surface and centre.
AIPMT 2002
72

A capacitor of capacity C1 charged up to V volt and then connected to an uncharged capacitor of capacity C2. The final potential difference across each will be

  1. C1VC1+C2
  2. C2VC1+C2
  3. (1- C2C1 )V
  4. (1+ C2C1 )V
AIPMT 2002
73

Energy per unit volume for a capacitor having area A and separation d kept at potential difference V is given by

  1. 12 0 V2d2
  2. 12 0 V2d2
  3. 12CV2
  4. Q22C
AIPMT 2001
74

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

  1. U/2
  2. U/4
  3. 4U
  4. 2U
AIPMT 2000