Two fixed resistors

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

Problem

Two fixed resistors, one of resistance

R_1 = 5\,\Omega

and the other of resistance

R_2 = 20\,\Omega

, are each connected separately to identical ideal power supplies that deliver a constant current of

2.0\,\text{A}

. Which resistor converts electrical energy to thermal energy at the greater rate, and why? Answer in one or two sentences.