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CHSE Physics Class XII

Electric Charges and Fields

Electrostatic Potential and Capacitance

Current Electricity

Moving Charges and Magnetism

Magnetism and Matter

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Ray Optics and Optical Instruments

Dual Nature of Radiation and Matter

Electronic Devices

Electrostatic Potential and Capacitance

CHSE Physics Class XII
Electrostatic Potential and Capacitance

CHSE Odisha Class XII Physics Chapter-2: Electrostatic Potential and Capacitance Quiz.

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Question 1 of 20

1. Question

Electric potential $V$ and electric field intensity $\vec{E}$ are related as

$\vec{E}=\vec{\nabla}V$
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$\vec{E}=-\vec{\nabla}V$
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$V=\vec{\nabla}\cdot \vec{E}$
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$V=-\vec{\nabla}\cdot \vec{E}$
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Question 2 of 20

2. Question

Name of the physical quantity whose S.I. unit is $J C^{-1}.

electric potential
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electric field
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electric dipole
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electric flux
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Question 3 of 20

3. Question

A force $2.5 N$ is experienced by a point charge of $5\times 10^{-6} C$ at a point in an electric field. The potential gradient at that point in SI unit is

$5\times10^5 N/C$
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$-5\times10^5 N/C$
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$5\times10^5 V/m$
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$-5\times10^5 V/m$
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Question 4 of 20

4. Question

Two points in an electric field have a potential difference of $5 V$. What is the amount of work done in moving a charge of $3 C$ from one point to another?

$15 J$
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$30 J$
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$10 J$
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$5 J$
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Question 5 of 20

5. Question

The electrostatic potential at a point $30 cm$ from a $20\mu C$ point charge in air is

$6\times 10^5 V$
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$6\times 10^4 V$
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$6\times 10^3 V$
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$6\times 10^2 V$
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Question 6 of 20

6. Question

The electrostatic potential due to an electric dipole at a distance $r$ from its centre is directly proportional to

$\frac{1}{r}$
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$\frac{1}{r^2}$
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$\frac{1}{r^3}$
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$\frac{1}{r^4}$
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Question 7 of 20

7. Question

The electric potential at a point at a distance $2 m$ from a point charge of $0.1\mu C$ is $450 V$. The electric field at this point will be

$225 N/C$
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$450 N/C$
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$55 N/C$
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$110 N/C$
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Question 8 of 20

8. Question

The angle between the equipotential surface and the electric lines of force at a point is

$0^0$
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$45^0$
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$90^0$
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$180^0$
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Question 9 of 20

9. Question

How much work is done in moving a $500\mu C$ charge between two points on an equipotential surface?

zero
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$500 J$
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positive
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negative
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Question 10 of 20

10. Question

Which of the following is NOT the property of an equipotential surface?

They do not cross each other.
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The rate of change of potential with distance on them is zero.
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For a uniform electric field, they are concentric spheres.
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They can be imaginary spheres.
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Question 11 of 20

11. Question

A test charge $q$ is brought from infinity along the perpendicular bisector of an electric dipole. The work done on $q$ by the electric field of the dipole is

zero
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negative
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positive
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proportional to $q$
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Question 12 of 20

12. Question

An electric dipole of moment $\vec{p}$ is placed parallel to the uniform electric field $\vec{E}$. The amount of work done in rotating the dipole by $90^{0}$ is

$2pE$
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$pE$
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$pE/2$
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zero
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Question 13 of 20

13. Question

Which of the following is the correct relation among the SI units of capacitance, potential and charge?

$F=CV$
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$F=C^{-1}V$
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$F=C^{-1}V^{-1}$
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$F=CV^{-1}$
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Question 14 of 20

14. Question

How much is the charge deposited on the capacitor of $10 \mu F$ charged to a potential of $100 V$?

$10^{-3} C$
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$10^{-2} C$
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$10^{3} C$
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$10^{2} C$
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Question 15 of 20

15. Question

The equivalent capacitance of two $1\mu F$ capacitors connected in series is

$2\mu F$
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$0.25 \mu F$
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$0.5 \mu F$
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$1 \mu F$
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Question 16 of 20

16. Question

The ratio between equivalent capacitances $C_s$ and $C_p$ of two equal capacitors in series combination and parallel combination, respectively, is

$1$
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$\frac{1}{2}$
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$\frac{1}{4}$
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$\frac{1}{8}$
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Question 17 of 20

17. Question

If the distance between the two plates of a capacitor of capacitance $C$ is doubled, and the area of each plate is halved, its new capacitance becomes

$\frac{C}{2}$
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$\frac{C}{4}$
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$2C$
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$4C$
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Question 18 of 20

18. Question

A parallel plate capacitor with air between the plates has capacitance $3\mu F$. If the capacitor is immersed in a liquid of dielectric constant $4$, its capacitance will be

$0.75\mu F$
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$1.5\mu F$
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$6\mu F$
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$12\mu F$
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Question 19 of 20

19. Question

The equivalent capacitance of two capacitors when joined in parallel is $16\mu F$ and when joined in series is $3\mu F$. The capacitances of the capacitors are

$8\mu F$ and $8\mu F$
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$4\mu F$ and $12\mu F$
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$6\mu F$ and $10\mu F$
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$2\mu F$ and $14\mu F$
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Question 20 of 20

20. Question

The energy stored in a capacitor of capacitance $C$ and holding charge $q$ is

$q^2/{C}$
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$2q/{C}$
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$q^2/{2C}$
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$q/{2C}$
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