# NCERT Class 12/MCQ Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Sample Test,Sample questions

## Question: `A bird sitting on a high power line:`

1.gets killed instantly

2.gets a mild shock

3.gets a fatal shock

4.is not affected practically

## Question: `A bird sitting on a high power line:`

1.gets killed instantly

2.gets a mild shock

3.gets a fatal shock

4.is not affected practically

1.cell is < E

2.cell is E

3.cell is > E

4.capacitor is E

1.(K + l).C

2.K.C

3.(K+1)2 C

4.(k â€“ l) C

## Question: `A polythene piece rubbed with wool is found to have a negative charge of 6.4 Ã— 10-9c. How many electrons have been transferred during the process?`

1.4 Ã— 1012

2.4 Ã— 1011

3.4 Ã— 1010

4.None of the these

## Question: `A uniform electric field of 10 NC-1 exists in the vertically downward direction. What is the increase in the electric potential asonegoes up through a height of 300 cm ?`

1.15 V

2.30 V

3.45V

4.None of the above

1.75 V

2.100 V

3.85 V

4.50 V

## Question: `An electron initially at rest is accelerated through a potential difference of one volt. The energy gained by electron is:`

1.1 J

2.1.6 Ã— 10-19 J

3.10-19 J

4.None of the above

## Question: `Choose the SI unit of electric potential energy :`

1.Joule

2.Coulomb

3.Netwon per coulomb

4.Erg

## Question: `Choose the vector physical quantity:`

1.Electric flux

2.Electric potential

3.Electric potential energy

4.Electric intensity

## Question: `IA capacitor is connected across a battery and the plate separation of capacitor is increased without removing the battery, then:`

1.capacitance will increase

2.charge stored will increase

3.energy stored will decrease

4.potential difference will increase

## Question: ```If a +ve charge is moved from low to high potential region, the electric potential energy:```

1.decreases

2.increases

3.remain the same

4.may increase or decrease

## Question: `In the above question:`

1.no electrons are transferred

2.electrons are transferred from wool to x polythene

3.electrons are transferred from polythene to wool

4.nothing can be decided

1.Charge

2.Potential

3.Capacitance

4.Electric field

1.4

2.3

3.5

4.6

## Question: `nothing can be decided`

1.3.64 Ã— 1020 kg

2.4 Ã— 10-28 kg

3. 4 Ã— 1010 kg

4.None of the these

1.1.8 J (

2.2.4 J

3.1.8 ÂµJ

4. 2.4 ÂµJ

1.copper

2.aluminium

3.zinc

4.None of these

1.1420 ÂµF

2.712 ÂµF

3.680 ÂµF

4.540 ÂµF

1.[MLT-3 A-1]

2. [ML2T-2A-1]

3.[ML2T-2A-3]

4.[MLT-2A-2]

## Question: `The electric potential of earth is taken as:`

1.zero

2.infinity

3.unity

4.None of the above

1.Ï€2

2.Ï€

3.zero

4.3Ï€2

1.Cm-1

2.Cm-2

3.Cm-3

4.JC-1

1.180 V

2.90 V

3.120 V

4.45 V

1.8 V, 4 V

2.6 V, 6 V

3. 4 V, 8 V

4.9 V, 3 V

1.72 V

2.60 V

3.48 V

4.zero

1. (r1/r2)Â²

2.(r1r2)Â²

3.(r1/r2)

4. (r2/r1)

## Question: `Two copper spheres of the same radius, one solid and the other hollow, are charged to the same potential. Which will have more charge?`

1.Solid sphere

2.Hollow sphere

3.Both will have an equal charge

4.None of the above

## Question: `What is the number of electrons in 100 g water?`

1..35 Ã— 1024

2.3.35 Ã— 1025

3.6.02 Ã— 1023

4.None of the above

## Question: `When a dielectric slab is introduced between the plates of a parallel plate capacitor which remains connected to a battery then charge on the plates relative to earlier charge is `

1.more

2.less

3.less or may be more

4.same

## Question: `Which of the following is blocked by a capacitor ?`

1.A.C.

2.D.C.

3.Both A.C. and D.C.

4.Neither A.C. nor D. C

## More MCQS

##### Olete Team
Online Exam TestTop Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on Online Exam Testwebsite is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!