9:00 PM Tue Mar 22 on I.\" as moo/\"C43. 6 ti +2- 4. (30 points) a) (20 points) Use Kirchhoff's loop rules and junction rules to write as many equations as necessary to mathematically resolve for all currents in all branches of the circuit below. Clearly indicate your choices for current's labels and directions. b) (10 points) Resolve the equations from part (a) in order to determine the current through R1 and calculate the power dissipated through it. 3V 6V