Question

At the most recent meeting of the physicists-who-look-to-torture-students club, there
was great discouragement at how the students had solved the evil capacitor network
problem. What could be done? A timid voice2
from the back said, “We could try
again with resistors?” Yes... resistors! Mwa-ha-ha-ha! Find the equivalent resistance
of the network pictured here, then find the current and potential difference across each
resistor.

4ohms
7ohms
2ohms
3ohms
2ohms
9V