DAA 2105 Lecture 8: 3UlxH9yFkiSx

The SI unit of capacitance is the farad, which is equivalent to which of the following: (a) coulomb/volt, (b) joule, (c) volt, (d) coulomb, or (e) joule/coulomb?

Since the volt has unit of amps x ohms and capacitance has unit ofcoulomb/volt, RC has unit of:

a) 1/time

b) time

c) neither, RC is a dimensionless constant

A volt (V) is defined as the energy (in joules, J) consumed or released in moving a charge (in coulombs, C) from one place to another. Therefore, one volt is equal to 1 J/C. A typical AA battery stores 9000 C of charge at 1.5 V. How much energy can a AA battery provide?