Unit 14 · Electrostatics
15 randomly selected questions from a bank of 60 · one attempt · 15 minutes on the clock.
Topics covered
- Production and detection of electric charge — charging by friction, conduction, and induction
- The electroscope — construction, working principle, and detecting the presence (but not the sign) of a charge
- Coulomb's law, the electrostatic force between point charges, and worked numerical problems
- Electric field and electric field intensity (E = F/Q), and sketching electric field lines for point charges
- Electrostatic potential and potential difference (voltage), and the definition of the volt
- Applications of electrostatics — spray painting, electrostatic air cleansing, and safe discharge of static electricity
- Capacitors — capacitance, factors affecting capacitance, series/parallel combinations, and uses of capacitors
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