Electric Potential and Capacitor Objective Question In English

Class 12th Physics, Physics Objective Question

Electric Potential and Capacitor Objective Question In English

Electric Potential and Capacitor Objective Question In English | Class 12 Physics Mcq In English chapter 2 | 12th Physics ka Objective Question | 12th Physics Objective Questions and Answers pdf 2024

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Electric Potential and Capacitor Objective Question In English
Electric Potential and Capacitor Objective Question In English

Electric Potential and Capacitor Objective Question

1. If uniform electric field exists along Z-axis, equipotential is along
  • (A) XY-plane
  • (B) XZ-plane
  • (C) YZ-plane
  • (D) none
Show Answer
(A) XY-plane
2. Eight drops each of radius r and charge q are merged to form a big drop. The potential energy of the big drop as compared to one small drop is
  • (A) 32 times
  • (B) 16 times
  • (C) 8 times
  • (D) 4 times
Show Answer
(A) 32 times
3. A spherical conductor is charged. The electric field intensity at its centre will be
  • (A) infinite
  • (B) zero
  • (C) equal to that at the surface
  • (D) none
Show Answer
(B) zero
4. The electric potential due to a small electric dipole at a large distance r from the center of the dipole is proportional to
  • (A) r
  • (B) 1 / r
  • (C) 1 / r2
  • (D) 1 / r3
Show Answer
(C) 1 / r2
5. If a metal rod is inserted between the plates of a capacitor connecting them, the capacitance will become
  • (A) zero
  • (B) infinity
  • (C) 9 x 109 μF
  • (D) None
Show Answer
(B) infinity
6. Eight drops each of radius r and charge q are merged to form a single drop. The ratio of the potential of big drop to small drop is
  • (A) 8:1
  • (B) 4:1
  • (C) 2:1
  • (D) 1:8
Show Answer
(B) 4:1
7. The value of dielectric constant of a substance except air is always greater than
  • (A) zero
  • (B) 0.5
  • (C) 1
  • (D) 2
Show Answer
(C) 1
8. Two capacitors each of capacitance 1 μF are connected in parallel and a third capacitor of 0.5 μF is connected in series with this combination. The resulting capacitance will be
  • (A) 16 μF
  • (B) 10 F
  • (C) 2.5 μF
  • (D) 12 μF
Show Answer
(C) 2.5 μF
9. van de Graaff generator is a machine that produces
  • (A) AC power
  • (B) current of high frequency
  • (C) voltage of several lakh volts
  • (D) only small currents
Show Answer
(C) voltage of several lakh volts
10. If a conductor is placed in an electric field, the electric field inside the conductor
  • (A) decreases
  • (B) increases
  • (C) becomes zero
  • (D) remains unchanged
Show Answer
(C) becomes zero
11. If an earthed conductor is brought near an insulated conductor, then the capacity of insulated conductor
  • (A) decreases
  • (B) increases
  • (C) remain unchanged
  • (D) none
Show Answer
(B) increases
12. Each of four capacitors has a capacitance of 2 μF. To get an equivalent capacitance of 8 μF, these must be combined
  • (A) in series
  • (B) in parallel
  • (C) some in series and some in parallel
  • (D) None of these
Show Answer
(B) in parallel
13. The unit of electric potential is volt and is equal to
  • (A) joule/coulomb
  • (B) joule x coulomb
  • (C) coulomb / joule
  • (D) None of these
Show Answer
(A) joule/coulomb
14. Electric potential is equal to
  • (A) q / W
  • (B) W / q
  • (C) Wq
  • (D) √Wq
Show Answer
(B) W / q
15. One farad (F) is equal to
  • (A) 1 CV
  • (B) 1 CV-1
  • (C) 1 CV-2
  • (D) 1 CV2
Show Answer
(B) 1 CV-1
16. If a glass bar is moved between the plates of an air-capacitor, its capacitance
  • (A) increase
  • (B) decrease
  • (C) remain stable
  • (D) zero
Show Answer
(A) increase

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Tag:– questions on electric potential and capacitance | electric potential and capacitance questions | electric potential mcq | mcq from electric potential and capacitance | electric potential and capacitance board questions | mcq on electrostatic potential and capacitance | Electric Potential and Capacitor Objective Question in English

Class 12 Physics Mcq In English | Related Post

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Bihari Academy By Sarkari Exam
Electric Potential and Capacitor Objective Question In English | Class 12 Physics Mcq In English
Pattern BasedBihar Board, Patna
Class12th or Inter
StreamScience
CategoryClass 12 Physics Mcq
Chapter NameElectric Potential and Capacitor
SubjectPhysics Class 12th
Class 12th English SummaryBSEB Class 12th English Summary
Class 10th Science All Chapter Objective Question
Click Hare
Type Of Question
Objective Question || 01 Marks
ScriptHindi And English Medium
Published OnBihari Academy
sarkari result
Updated: 12/06/2023 — 3:03 PM

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