When deriving the capacitance of an isolated parallel-plate capacitor
PHYSICS · Single correct · AP · Physics C: Electricity and Magnetism · Conductors and Capacitors · Conductors and Capacitors
Problem
When deriving the capacitance of an isolated parallel-plate capacitor, which assumption is essential for the validity of the steps?
(a) The plates remain connected to a constant voltage source during charging.
(b) The electric field between the plates is uniform and edge effects are neglected.
(c) The separation between the plates must be much larger than their linear dimensions.
(d) The electric field outside the plates is identically zero everywhere in space.