Sub-topic 1
2024 · National Quarterfinal
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Capacitance of a parallel plate capacitor with a dielectric
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Sub-topic 2
2024 · National Preliminary
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Capacitance of a parallel plate capacitor with a dielectric
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Sub-topic 3
2026 · National Preliminary
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Riddle: si unit of capacitance
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Sub-topic 4
2023 · National Preliminary
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Identifying capacitance from its si unit, the farad
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Sub-topic 5
2024 · National Preliminary
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Riddle: the physical quantity called capacitance
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Sub-topic 6
2024 · National Preliminary
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Coulomb's law: statement and the force between two point charges
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Sub-topic 7
2024 · National Preliminary
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Equivalent capacitance of two capacitors connected in series
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Sub-topic 8
2026 · National Preliminary
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Electric potential at the surface of a charged conducting sphere
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Sub-topic 9
2026 · National Preliminary
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Equivalent capacitance of three capacitors connected in parallel
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Sub-topic 10
2025 · National Semifinal
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Electric field on the axis of a uniformly charged non-conducting disk
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Sub-topic 11
2024 · National One-Eighth
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Electric potential at the surface of a charged conducting sphere
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Sub-topic 12
2017 · National Quarterfinal
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Number of excess protons on a charged conducting sphere from its surface potential
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Sub-topic 13
2026 · National Preliminary
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Solving for potential, charge or radius of an isolated conducting sphere using $V = \dfrac{kQ}{r}$
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Sub-topic 14
2025 · Regional Championship
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Solving for potential, charge or radius of an isolated conducting sphere using $V = \dfrac{kQ}{r}$
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Sub-topic 15
2023 · National Preliminary
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Electrostatic induction: a charged rod near a positively charged electroscope's cap (true/false)
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Sub-topic 16
2025 · National One-Eighth
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Equivalent capacitance of three capacitors connected in series
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Sub-topic 17
2025 · National One-Eighth
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Electrostatic induction on an isolated, insulated neutral conductor near a charged rod (true/false)
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Sub-topic 18
2013 · National Preliminary
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Charge on a capacitor from capacitance and voltage
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Sub-topic 19
2013 · National Preliminary
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Energy stored by a capacitor from capacitance and voltage
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Sub-topic 20
2013 · National Preliminary
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Electrical work done moving a charge through a potential difference
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Sub-topic 21
2013 · National Preliminary
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Charge resides only on the outer surface of a hollow conductor (true/false)
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Sub-topic 22
2013 · National Preliminary
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Charge distributes uniformly on a spherical conductor (true/false)
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Sub-topic 23
2013 · National Preliminary
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Charge concentrates at sharp points/tips of a conductor (true/false)
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Sub-topic 24
2013 · National Preliminary
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Riddle: the gold-leaf electroscope
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Sub-topic 25
2013 · National Preliminary
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Lightning as an atmospheric electrostatic discharge (true/false)
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Sub-topic 26
2013 · National Preliminary
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Existence of upward (ground-to-cloud) lightning (true/false)
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Sub-topic 27
2013 · National Preliminary
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Charge on a hollow conductor resides entirely on its outer surface (true/false)
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Sub-topic 28
2013 · National Quarterfinal
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Straight-line trajectory of a charge moving parallel to a uniform e-field
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Sub-topic 29
2013 · National Quarterfinal
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Parabolic trajectory of a charge launched perpendicular to a uniform e-field
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Sub-topic 30
2013 · National Quarterfinal
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Parabolic trajectory of a charge launched at an angle to a uniform e-field
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Sub-topic 31
2013 · National Quarterfinal
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Problem of the day: null point between two equal point charges
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Sub-topic 32
2013 · National Quarterfinal
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Electrostatic potential is uniform over a charged conductor's surface (true/false)
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Sub-topic 33
2013 · National Quarterfinal
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Potential inside a conductor equals its surface potential, not lower (true/false)
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Sub-topic 34
2013 · National Quarterfinal
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Potential inside a hollow conductor equals the surface potential, not necessarily zero (true/false)
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Sub-topic 35
2013 · National Semifinal
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Electrostatic force between two protons vastly exceeds their gravitational attraction (true/false)
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Sub-topic 36
2014 · National Quarterfinal
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Linearizing the inverse-square electrostatic force law for graphing
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Sub-topic 37
2014 · National Final
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Work done by an electrostatic field is path-independent (true/false)
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Sub-topic 38
2016 · National One-Eighth
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Inverse-square variation of electric field strength from a point charge
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Sub-topic 39
2016 · National One-Eighth
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Electrostatic potential halving when distance from a point charge doubles
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Sub-topic 40
2016 · National One-Eighth
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Uniform electric field between large charged parallel plates
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Sub-topic 41
2016 · National One-Eighth
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Change in capacitance from a small percentage decrease in plate separation
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Sub-topic 42
2020 · National Preliminary
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Total charge induced on a conducting plane by a nearby point charge
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Sub-topic 43
2020 · National One-Eighth
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Net charge on a conducting sphere from its surface field and radius
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Sub-topic 44
2021 · National Preliminary
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Electric force on a negative charge from a given field vector
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Sub-topic 45
2021 · National Quarterfinal
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Electric force between two point charges via coulomb's law
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Sub-topic 46
2022 · National Preliminary
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True or false: electric force on a charge in a uniform field is independent of the particle's speed
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Sub-topic 47
2022 · National Preliminary
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True or false: electric force on a charge in a uniform field is independent of the particle's direction of motion
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Sub-topic 48
2022 · National Preliminary
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True or false: electric force on a charge in a uniform field is always in the same direction as its velocity
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Sub-topic 49
2022 · National Preliminary
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Finding the charge from electric force and field strength, $F = Eq$
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Sub-topic 50
2022 · National Preliminary
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True or false: no electric field lines can be present where charge density is zero
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Sub-topic 51
2022 · National Preliminary
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True or false: electric flux through a closed surface is proportional to enclosed charge
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Sub-topic 52
2022 · National Preliminary
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True or false: electric field lines are parallel wherever charge density is zero
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Sub-topic 53
2022 · National Preliminary
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Riddle: coulomb's law, a named inverse-square force law
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Sub-topic 54
2022 · National One-Eighth
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True or false: an isolated conductor near (not touching) a point charge has zero net charge
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Sub-topic 55
2022 · National One-Eighth
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True or false: the induced charge on a conductor near a point charge is uniformly distributed
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Sub-topic 56
2022 · National One-Eighth
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True or false: the net charge induced on a conductor near a point charge is negative
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Sub-topic 57
2023 · National Preliminary
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Electric field between parallel plates, $E = \dfrac{V}{d}$
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Sub-topic 58
2023 · National Quarterfinal
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Charge on a spherical conductor from its radius and surface potential
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Sub-topic 59
2023 · Regional Championship
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Riddle: electricity, phenomena of charged particles named after the electron/beta particle
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