Capacitors and Units in Physics
18 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the proportionality constant that represents a conductor's ability to hold charge and associated electrical energy?

  • Inductance
  • Capacitance (correct)
  • Resistance
  • Conductance

What is the relationship between charge and potential in a conductor?

  • Q = V/C
  • Q ∝ 1/V
  • Q ∝ V (correct)
  • Q = CV^2

What happens to a soap bubble or rubber balloon when it is given a charge?

  • It shrinks
  • It expands (correct)
  • It stays the same size
  • It disappears

What is the direction of the force experienced by a charged conductor?

<p>Outward (D)</p> Signup and view all the answers

What is the electric pressure on a charged conductor?

<p>P = σ²/2ε₀ (B)</p> Signup and view all the answers

What is the unit of capacitance?

<p>Farad (A)</p> Signup and view all the answers

What is the unit of capacitance in the S.I system?

<p>Farad (B)</p> Signup and view all the answers

What is the dimension of capacitance?

<p>[M^-1 L^-2 T^4 A^2] (A)</p> Signup and view all the answers

What is the capacitance of a capacitor?

<p>The ratio of the magnitude of the charge on the positive plate to the magnitude of the potential difference between the plates (B)</p> Signup and view all the answers

What is the net charge on a capacitor?

<p>Zero (C)</p> Signup and view all the answers

What is the energy stored in a capacitor?

<p>CV^2 (B)</p> Signup and view all the answers

What is the energy density of an electric field in a capacitor?

<p>U = ε0E^2/2 (C)</p> Signup and view all the answers

What is the equivalent capacitance when three capacitors are connected in parallel?

<p>C1 + C2 + C3 (D)</p> Signup and view all the answers

If two capacitors having capacitances C1 and C2 are connected in series, what is the voltage across each capacitor?

<p>V1 = V / C1 and V2 = V / C2 (B)</p> Signup and view all the answers

What is the charge on each capacitor when n identical capacitors are connected in series with a supply voltage V?

<p>Q' = nQ (B)</p> Signup and view all the answers

What is the equivalent capacitance when two capacitors are connected in series?

<p>(C1 * C2) / (C1 + C2) (B)</p> Signup and view all the answers

What is the characteristic of capacitors connected in series?

<p>Equivalent capacitance is always lesser than individual capacitances (D)</p> Signup and view all the answers

What is the characteristic of capacitors connected in parallel?

<p>Equivalent capacitance is always greater than individual capacitances (C)</p> Signup and view all the answers

More Like This

Ceramic Capacitors
6 questions

Ceramic Capacitors

DurableBurgundy8896 avatar
DurableBurgundy8896
OCR A Physics A-level Capacitors
45 questions

OCR A Physics A-level Capacitors

InvaluableEvergreenForest8240 avatar
InvaluableEvergreenForest8240
Physics: Dielectric Materials and Capacitors
16 questions
Capacitors and Electric Fields Quiz
42 questions
Use Quizgecko on...
Browser
Browser