Select Question Set:
Q. No.The equivalent capacitance of the system shown in the following circuit is:
1.
\(9~{\mu \text{F}}\)
2.
\(2~{\mu \text{F}}\)
3.
\(3~{\mu \text{F}}\)
4.
\(6~{\mu \text{F}}\)
Subtopic: Â Combination of Capacitors |
 83%
Level 1: 80%+
NEET - 2023
Hints
An electric dipole is placed as shown in the figure.
The electric potential (in \(10^2~\text{V}\)) at the point \(P\) due to the dipole is:
(\(\varepsilon_0=\) permittivity of free space and \(\dfrac{1}{4 \pi \varepsilon_0}=k\))
The electric potential (in \(10^2~\text{V}\)) at the point \(P\) due to the dipole is:
(\(\varepsilon_0=\) permittivity of free space and \(\dfrac{1}{4 \pi \varepsilon_0}=k\))
| 1. | \(\left(\dfrac{8}{3}\right)qk\) | 2. | \(\left(\dfrac{3}{8}\right)qk \) |
| 3. | \(\left(\dfrac{5}{8}\right)qk\) | 4. | \(\left(\dfrac{8}{5}\right)qk\) |
Subtopic: Â Energy of Dipole in an External Field |
 65%
Level 2: 60%+
NEET - 2023
Hints
If a conducting sphere of radius \(R\) is charged. Then the electric field at a distance \(r(r>R)\) from the centre of the sphere would be, (\(V=\) potential on the surface of the sphere):
| 1. | \(\dfrac{rV}{R^2}\) | 2. | \(\dfrac{R^2V}{r^3}\) |
| 3. | \(\dfrac{RV}{r^2}\) | 4. | \(\dfrac{V}{r}\) |
Subtopic: Â Electric Potential |
 50%
Level 3: 35%-60%
NEET - 2023
Hints
An electric dipole of moment \(p\) is placed in a uniform electric field \(E\) such that the dipole axis is initially perpendicular to the direction of the electric field. The dipole is then slowly rotated in the field until it has turned through a total angle of \(180^\circ.\) What is the total work done by the external agent in rotating the dipole?
1. \(pE\)
2. \(pE/2\)
3. \(2pE\)
4. zero
Subtopic: Â Energy of Dipole in an External Field |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Identify the incorrect statement from the following:
| 1. | The equipotential surface created by a single-point charge is spherical. |
| 2. | Equipotential surfaces can also be constructed for a dipole. |
| 3. | Equipotential surfaces are always perpendicular to electric field lines. |
| 4. | The work done in moving a test charge along an equipotential surface is positive. |
Subtopic: Â Equipotential Surfaces |
 84%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Six charges \(+q,\) \(-q,\) \(+q,\) \(-q,\) \(+q\) and \(-q\) are fixed at the corners of a hexagon of side \(d\) as shown in the figure. The work done in bringing a charge \(q_0\) to the centre of the hexagon from infinity is: (\(\varepsilon_0\text-\)permittivity of free space)
| 1. | zero | 2. | \(\dfrac{-q^2}{4\pi\varepsilon_0d}\) |
| 3. | \(\dfrac{-q^2}{4\pi\varepsilon_0d}\Big(3-\dfrac{1}{\sqrt2}\Big)\) | 4. | \(\dfrac{-q^2}{4\pi\varepsilon_0d}\Big(6-\dfrac{1}{\sqrt2}\Big)\) |
Subtopic: Â Electric Potential Energy |
 85%
Level 1: 80%+
NEET - 2022
Hints
The effective capacitances of two capacitors are \(3~\mu \text{F}\) and \(16~\mu \text{F}\), when they are connected in series and parallel respectively. The capacitance of two capacitors are:
1. \(10 ~\mu \text{F}, ~6~\mu \text{F} \)
2. \(8 ~\mu \text{F}, ~8~\mu \text{F} \)
3. \(12~\mu \text{F},~ 4~\mu \text{F} \)
4. \(1.2~\mu \text{F},~1.8~\mu \text{F} \)
1. \(10 ~\mu \text{F}, ~6~\mu \text{F} \)
2. \(8 ~\mu \text{F}, ~8~\mu \text{F} \)
3. \(12~\mu \text{F},~ 4~\mu \text{F} \)
4. \(1.2~\mu \text{F},~1.8~\mu \text{F} \)
Subtopic: Â Combination of Capacitors |
 79%
Level 2: 60%+
NEET - 2022
Hints
The equivalent capacitance between points A and B in the figure (shown below) will be:
1. \(2~\mu \text F\)
2. \(4~\mu \text F\)
3. \(6~\mu \text F\)
4. \(8~\mu \text F\)
1. \(2~\mu \text F\)
2. \(4~\mu \text F\)
3. \(6~\mu \text F\)
4. \(8~\mu \text F\)
Subtopic: Â Combination of Capacitors |
 72%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Two large metal plates are connected to a \(120\text{ V}\) supply (see figure). What is the magnitude of force experienced by an electron \((e=-1.6\times10^{-19}~\text C) \) placed between the plates? (assume that the plates are in a vacuum)
1. \(0.96\times10^{-16}~\text N\)
2. \(4.8\times10^{-16}~\text N\)
3. \(9.6\times10^{-16}~\text N\)
4. \(96\times10^{-16}~\text N\)
1. \(0.96\times10^{-16}~\text N\)
2. \(4.8\times10^{-16}~\text N\)
3. \(9.6\times10^{-16}~\text N\)
4. \(96\times10^{-16}~\text N\)
Subtopic: Â Relation between Field & Potential |
 74%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
The electric potential at any point \((x,y,z)~\text m\) in space is given by \(V=3x^{2}~\text V.\) The electric field at the point \((1,0,3)~\text m\) will be:
| 1. | \(3~\text{V/m},\) directed along the positive \(x\text-\)axis |
| 2. | \(3~\text{V/m},\) directed along the negative \(x\text-\)axis |
| 3. | \(6~\text{V/m},\) directed along the positive \(x\text-\)axis |
| 4. | \(6~\text{V/m},\) directed along the negative \(x\text-\)axis |
Subtopic: Â Relation between Field & Potential |
 77%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2026 GoodEd Technologies Pvt. Ltd.