A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with ne
ID: 2255418 • Letter: A
Question
A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor? A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor? A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor? A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor? A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor?Explanation / Answer
In series R = 5+10+15 = 30 ?
current i = v/R = 120/30 = 4 A
PD across 5? is = ixR1 = 4x5 = 20 V