Question 1: Palette 1/39

NEET 2026 MCQ

Five capacitors of capacitances

$C_1=C_2=C_3=C_4=10 \mu \mathrm{~F}$ and $C_5=2.5 \mu \mathrm{~F}$ are connected as shown, along with a battery of 50 V .

The equivalent capacitance and the charges on each capacitor respectively are:

A

$5 \mu \mathrm{~F}, 125 \mu \mathrm{C}$ on $C_1$ to $C_4$ and $25 \mu \mathrm{C}$ on $C_5$

B

$5 \mu \mathrm{~F}, 125 \mu \mathrm{C}$ on all capacitors

C

$5 \mu \mathrm{~F}, 250 \mu \mathrm{C}$ on all capacitors

D

$4 \mu \mathrm{~F}, 250 \mu \mathrm{C}$ on $C_1$ to $C_4$ and $125 \mu \mathrm{C}$ on $C_5$

Question 2: Palette 2/39

NEET 2026 MCQ

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:

A

$0.5 \times 10^{-6} \mathrm{~J}$

B

1.0 J

C

$1.0 \times 10^{-6} \mathrm{~J}$

D

0.5 J

Question 3: Palette 3/39

NEET 2026 MCQ

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 $U_P$ and $U_T$, respectively, then the ratio $\frac{U_P}{U_T}$ is:

A

$1 / 6$

B

$2 / 3$

C

$1 / 3$

D

$1 / 2$

Question 4: Palette 4/39

NEET 2025 MCQ

The plates of a parallel plate capacitor are separated by $d$. Two slabs of different dielectric constant $K_1$ and $K_2$ with thickness $\frac{3}{8} d$ and $\frac{d}{2}$, respectively are inserted in the capacitor. Due to this, the capacitance becomes two times larger than when there is nothing between the plates. If $K_1=1.25 K_2$, the value of $K_1$ is:

A

1.60

B

1.33

C

2.66

D

2.33

Question 5: Palette 5/39

NEET 2024 MCQ

A $12 \mathrm{~pF}$ capacitor is connected to a $50 \mathrm{~V}$ battery, the electrostatic energy stored in the capacitor in $\mathrm{nJ}$ is

A

15

B

7.5

C

0.3

D

150

Question 6: Palette 6/39

NEET 2024 MCQ

The capacitance of a capacitor with charge $q$ and a potential difference $V$ depends on

A

both $q$ and $V$

B

the geometry of the capacitor

C

$q$ only

D

$V$ only

Question 7: Palette 7/39

NEET 2024 MCQ

The steady state current in the circuit shown below is :

A

0.67 A

B

1.5 A

C

2 A

D

1 A

Question 8: Palette 8/39

NEET 2024 MCQ

In the following circuit, the equivalent capacitance between terminal A and terminal B is :

A

2 $\mu$F

B

1 $\mu$F

C

0.5 $\mu$F

D

4 $\mu$F

Question 9: Palette 9/39

NEET 2024 MCQ

If the plates of a parallel plate capacitor connected to a battery are moved close to each other, then

A. the charge stored in it, increases.

B. the energy stored in it, decreases.

C. its capacitance increases.

D. the ratio of charge to its potential remains the same.

E. the product of charge and voltage increases.

Choose the most appropriate answer from the options given below:

A

A, B and E only

B

A, C and E only

C

B, D and E only

D

A, B and C only

Question 10: Palette 10/39

NEET 2023 MCQ

The equivalent capacitance of the arrangement shown in figure is:

A

30 $\mu$F

B

15 $\mu$F

C

25 $\mu$F

D

20 $\mu$F

Question 11: Palette 11/39

NEET 2023 MCQ

To produce an instantaneous displacement current of $2 \mathrm{~mA}$ in the space between the parallel plates of a capacitor of capacitance $4 ~\mu \mathrm{F}$, the rate of change of applied variable potential difference $\left(\frac{\mathrm{dV}}{\mathrm{dt}}\right)$ must be :-

A

$800 \mathrm{~V} / \mathrm{s}$

B

$500 \mathrm{~V} / \mathrm{s}$

C

$200 \mathrm{~V} / \mathrm{s}$

D

$400 \mathrm{~V} / \mathrm{s}$

Question 12: Palette 12/39

NEET 2023 MCQ

The equivalent capacitance of the system shown in the following circuit is:

A

3$\mu$F

B

6$\mu$F

C

9$\mu$F

D

2$\mu$F

Question 13: Palette 13/39

NEET 2022 MCQ

The distance between the two plates of a parallel plate capacitor is doubled and the area of each plate is halved. If C is its initial capacitance, its final capacitance is equal to

A

${C \over 4}$

B

2C

C

${C \over 2}$

D

4C

Question 14: Palette 14/39

NEET 2022 MCQ

The effective capacitances of two capacitors are 3 $\mu$F and 16 $\mu$F, when they are connected in series and parallel respectively. The capacitance of two capacitors are :

A

1.2 $\mu$F, 1.8 $\mu$F

B

10 $\mu$F, 6 $\mu$F

C

8 $\mu$F, 8 $\mu$F

D

12 $\mu$F, 4 $\mu$F

Question 15: Palette 15/39

NEET 2022 MCQ

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

A

4.5 $\times$ 10^$-$6 J

B

3.25 $\times$ 10^$-$6 J

C

2.25 $\times$ 10^$-$6 J

D

1.5 $\times$ 10^$-$6 J

Question 16: Palette 16/39

NEET 2021 MCQ

A parallel plate capacitor has a uniform electric field $\overrightarrow 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 : ($\varepsilon $₀ = permittivity of free space)

A

${{{E^2}Ad} \over {{\varepsilon _0}}}$

B

${1 \over 2}{\varepsilon _0}{E^2}$

C

${\varepsilon _0}EAd$

D

${1 \over 2}{\varepsilon _0}{E^2}Ad$

Question 17: Palette 17/39

NEET 2021 MCQ

The equivalent capacitance of the combination shown in the figure is :

A

3C/2

B

3C

C

2C

D

C/2

Question 18: Palette 18/39

NEET 2020 MCQ

The capacitance of a parallel plate capacitor with air as medium is 6$\mu $F. With the introduction of a dielectric medium, the capacitance become 30 $\mu $F The permittivity of the medium is :
$\left( {{\varepsilon _0} = 8.85 \times {{10}^{ - 12}}{C^2}{N^{ - 1}}{m^{ - 2}}} \right)$

A

$1.77 \times {10^{ - 12}}{C^2}{N^{ - 1}}{m^{ - 2}}$

B

$0.44 \times {10^{ - 10}}{C^2}{N^{ - 1}}{m^{ - 2}}$

C

$5.00{C^2}{N^{ - 1}}{m^{ - 2}}$

D

$0.44 \times {10^{ - 13}}{C^2}{N^{ - 1}}{m^{ - 2}}$

Question 19: Palette 19/39

NEET 2019 MCQ

A parallel plate capacitor of capacitance 20 $\mu $F is being charged by a voltage source whose potential is changing at the rate of 3V/s. The conduction current through the connecting wires, and the displacement current through the plates of the capacitor, would be, respectively :

A

zero, zero

B

zero, 60 $\mu $A

C

60 $\mu $A, 60 $\mu $A

D

60 $\mu $A, zero

Question 20: Palette 20/39

NEET 2018 MCQ

The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is

A

Independent of the distance between the plates

B

Linearly proportional to the distance between the plates

C

Proportional to the square root of the distance between the plates

D

Inversely proportional to the distance between the plates

Question 21: Palette 21/39

NEET 2017 MCQ

A capacitor is charged by a battery. The battery is removed and another identical unchanged capacitor is connected in parallel. The total electrostatic energy of resulting system

A

decreases by a factor of 2

B

remains the same

C

increases by a factor of 2

D

increases by a factor of 4

Question 22: Palette 22/39

NEET 2016 MCQ

A parallel-plate capacitor of area a, plate separation d and capacitance C is filled with four dielectric materials having dielectric constants k₁, k₂, k₃ and k₄ as shown in the figure. If a single dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant k is given by

A

k = k₁ + k₂ + k₃ + 3k₄

B

k = ${2 \over 3}$ (k₁ + k₂ + k₃) + 2k₄

C

${2 \over k}$ = ${3 \over {{k_1} + {k_2} + {k_3}}} + {1 \over {{k_4}}}$

D

${1 \over k}$ = ${1 \over {{k_1}}} + {1 \over {{k_2}}} + {1 \over {{k_3}}} + {3 \over {2{k_4}}}$

Question 23: Palette 23/39

NEET 2016 MCQ

A capacitor of 2 $\mu $F is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipated is

A

75%

B

80%

C

0%

D

20%

Question 24: Palette 24/39

NEET 2015 MCQ

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

${{C{V^2}} \over d}$

B

${{{C^2}{V^2}} \over {2{d^2}}}$

C

${{{C^2}{V^2}} \over {2d}}$

D

${{C{V^2}} \over {2d}}$

Question 25: Palette 25/39

NEET 2015 MCQ

A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dieletric constant K, which can just fill the air gap of the capacitor, is now inserted in it . Which of the following is incorrect ?

A

The change in energy stored is ${1 \over 2}C{V^2}\left( {{1 \over K} - 1} \right)$

B

The charge on the capacitor is not conserved.

C

The potential difference between the plates decreases K times.

D

The energy stored in the capaciotor decreases K times.

Question 26: Palette 26/39

NEET 2014 MCQ

Two thin dielectric slabs of dielectric constants K₁ and K₂(K₁ < K₂) are inserted between plates of a parallel plate capacitor, as shown in the figure. The variation of electric field E between the plates with distance d as measured from plate P is correctly shown by

A

B

C

D

Question 27: Palette 27/39

NEET 2012 MCQ

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

${1 \over 2}{\varepsilon _0}{E^2}$

B

${{{E^2}Ad} \over {{\varepsilon _0}}}$

C

${1 \over 2}{\varepsilon _0}{E^2}Ad$

D

${\varepsilon _0}EAd$

Question 28: Palette 28/39

NEET 2011 MCQ

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

${1 \over 2}{\varepsilon _0}{E^2}$

B

${{{E^2}Ad} \over {{\varepsilon _0}}}$

C

${1 \over 2}{\varepsilon _0}{E^2}Ad$

D

${\varepsilon _0}EAd$

Question 29: Palette 29/39

NEET 2010 MCQ

Two parallel metal plates having charges +Q and $-$Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will

A

become zero

B

increase

C

decrease

D

remain same

Question 30: Palette 30/39

NEET 2010 MCQ

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

${{2{C_1}} \over {{n_1}{n_2}}}$

B

$16{{{n_2}} \over {{n_1}}}{C_1}$

C

$2{{{n_2}} \over {{n_1}}}{C_1}$

D

${{16{C_1}} \over {{n_1}{n_2}}}$

Question 31: Palette 31/39

NEET 2009 MCQ

Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltages of the combination will be

A

$3C,{V \over 3}$

B

${C \over 3},3V$

C

$3C,3V$

D

${C \over 3},{V \over 3}$

Question 32: Palette 32/39

NEET 2008 MCQ

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

${1 \over 2}{\varepsilon _0}{E^2}$

B

${{{E^2}Ad} \over {{\varepsilon _0}}}$

C

${1 \over 2}{\varepsilon _0}{E^2}Ad$

D

${\varepsilon _0}EAd$

Question 33: Palette 33/39

NEET 2007 MCQ

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

A

${1 \over 4}C{V^2}$

B

${3 \over 4}C{V^2}$

C

${1 \over 2}C{V^2}$

D

2CV²

Question 34: Palette 34/39

NEET 2006 MCQ

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 insulting handle. As a result the potential difference between the plates

A

increases

B

decreases

C

does not charge

D

becomes zero

Question 35: Palette 35/39

NEET 2005 MCQ

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

A

4/7

B

3/22

C

7/4

D

22/3

Question 36: Palette 36/39

NEET 2003 MCQ

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

A

connecting all of them in series

B

connecting them in parallel

C

connecting two in series and one in parallel

D

connecting two in parallel and one in series

Question 37: Palette 37/39

NEET 2002 MCQ

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

A

${{{C_1}V} \over {{C_1} + {C_2}}}$

B

${{{C_2}V} \over {{C_1} + {C_2}}}$

C

$\left( {1 - {{{C_2}} \over {{C_1}}}} \right)V$

D

$\left( {1 + {{{C_2}} \over {{C_1}}}} \right)$

Question 38: Palette 38/39

NEET 2001 MCQ

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

A

${1 \over 2}{\varepsilon _0}{{{V^2}} \over {{d^2}}}$

B

${1 \over {2{\varepsilon _0}}}{{{V^2}} \over {{d^2}}}$

C

${1 \over 2}C{V^2}$

D

${{{Q^2}} \over {2C}}.$

Question 39: Palette 39/39

NEET 2000 MCQ

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

A

$U/2$

B

U/4

C

4U

D

2U