Suppose that in a simple series circuit consisting of an emf source,

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Electric Circuits · Electric Circuits

Problem

\mathcal{E}

, and three resistors:

R_1

R_2

and

R_3

, a current,

I

, flows. Show that the principle of conservation of energy leads to Kirchhoff's second law:

\mathcal{E} = \sum(IR)_i