All Flashcards
What is the difference between resistance and capacitance?
Resistance opposes current flow; capacitance stores charge.
Compare and contrast Kirchhoff's Voltage Law (KVL) and Kirchhoff's Current Law (KCL).
KVL: Conservation of energy in a loop. KCL: Conservation of charge at a junction.
What happens when the length of a wire increases?
Resistance increases.
What happens when the cross-sectional area of a wire increases?
Resistance decreases.
What happens when the distance between capacitor plates is doubled?
Capacitance is halved.
What happens when like charges are brought near each other?
They repel.
What happens when opposite charges are brought near each other?
They attract.
What factors determine capacitor construction?
Distance between plates, surface area of plates, dielectric material between plates.
What is the formula for Resistance (R)?
R = , where R = Resistance, ρ = Resistivity, L = Length, A = Cross-sectional area.