In the circuit of figure p28.23, determine the current in each resistor and the potential difference across the 200 ohms resistor.
The Attempt at a Solution
Req=1/(1/200ohms +1/80ohms+ 1/20ohms+ 1/70ohms)= 12.22 ohms
I=-240V/12.22ohms= -19.6 A
deltaV= (-19.6A)(12.22)= -239 V
Am I doing this completely wrong? If so what do I need to do?