Match each term with the best description

a. Contains a resistor and a capacitor
b. One coulomb per volt
c. The constant of proportionality between charge and voltage
d. The characteristic time for a capacitor
e. The insulator between two capacitor plates
f. The measure of the difficulty required to push charges through a device

1. Capacitance
2. Dielectric
3. Farad
4. RC circuit
5. Resistance
6. Time constant