An Ideal 100-V Dc Battery Is Applied Across a Series

Multiple Choice

An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω,40 Ω,60 Ω,and 80 Ω.What is the potential difference across the 40-Ω resistor?

A) 20 V
B) 40 V
C) 60 V
D) 80 V
E) 100 V