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AP Intermediate 2nd Year Electrostatic Potential and Capacitance — practice questions

Explore 26 free Electrostatic Potential and Capacitance questions in AP Intermediate 2nd Year Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electrostatic Potential and Capacitance questions and exercises with answers

Showing questions 1–26 of 26.

What is the work done in carrying a charge of 4 C across two points having a potential difference of 18 V?Read the answer and worked solution →Potential is defined as work done per unit test charge so that the result:Read the answer and worked solution →Which is physically significant, the actual value of potential or the potential difference?Read the answer and worked solution →Bringing a unit positive charge from infinity to a point, without acceleration, measures the point's:Read the answer and worked solution →Volta built the first battery from a stack of metal disks and moist:Read the answer and worked solution →A surface where the potential has the same value at every point is called:Read the answer and worked solution →Around a single point charge the equipotential surfaces are:Read the answer and worked solution →At any point the electric field meets the equipotential surface:Read the answer and worked solution →In a uniform field along x, the equipotential surfaces are planes:Read the answer and worked solution →The electric field points in the direction in which the potential:Read the answer and worked solution →Inside a conductor in the static situation, the electrostatic field is:Read the answer and worked solution →You charge a metal ball. Where does the excess charge sit?Read the answer and worked solution →The electrostatic potential inside and on the surface of a conductor is:Read the answer and worked solution →Dielectrics differ from conductors because they have:Read the answer and worked solution →In O2 and H2 molecules the centres of positive and negative charge coincide. They are:Read the answer and worked solution →Two conductors separated by an insulator form a:Read the answer and worked solution →A capacitor's plates carry Q and minus Q. The total charge of the capacitor is:Read the answer and worked solution →The ratio Q/V for a capacitor is a constant called its:Read the answer and worked solution →A capacitor with a large capacitance can hold a large charge at a:Read the answer and worked solution →The largest field a dielectric can withstand without breaking down is its:Read the answer and worked solution →A parallel plate capacitor is two large flat plates separated by a:Read the answer and worked solution →Capacitors in series all carry:Read the answer and worked solution →Capacitors in parallel all have:Read the answer and worked solution →Catch the conductor factsRead the answer and worked solution →Pop the non-polar moleculesRead the answer and worked solution →Steer into the potential laneRead the answer and worked solution →

Worked practice questions

What is the work done in carrying a charge of 4 C across two points having a potential difference of 18 V?

  1. 72 J
  2. 24 J
  3. 7.2 J
  4. 4.5 J
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Correct answer: A. 72 J

1. Work done W = charge x potential difference = q x V. 2. = 4 C x 18 V. 3. = 72 J. _Source: RRB Group D CEN-02/2018 PYQ, Q.53._

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Potential is defined as work done per unit test charge so that the result:

  1. Does not depend on q
  2. Doubles with q
  3. Is always zero
  4. Depends on the path
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Correct answer: A. Does not depend on q

1. The work on a test charge is proportional to q. 2. Dividing by q removes that dependence. 3. So the result is independent of q. _Source: syllabus Physics Part I, Chapter 2, Electrostatic Potential and Capacitance._

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Which is physically significant, the actual value of potential or the potential difference?

  1. Only the sign
  2. The difference
  3. The actual value
  4. Neither of them
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Correct answer: B. The difference

1. The zero of potential can be chosen freely. 2. Only changes in potential do work. 3. So the potential difference is what matters. _Source: syllabus Physics Part I, Chapter 2, Electrostatic Potential and Capacitance._

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