2. Calculate the directions and magnitudes of the three currents in the circuit below (Fig 1) and fill in the accompanying table. (10 pts) 3. Build the circuit (figure 1.) and use the PHET DC construction kit to confirm your results and paste your circuit into this document. (5) points 4. Use the DC Construction kit to build a simple circuit to perform the following task: You are asked to use a single resistor and a 110 V DC battery for the purpose of boiling a litter of water (4,184 Joule/Kg*degree Celsius), with a staring temperature of 20 C, in exactly 4 minutes. Paste your circuit design (with all data included) into this document. (10 points) R1 a R3 /12 R4 E1 R2 b Figure 1 Batteries E1 19V E2 6V E3 2V Resistors: R1 60 R2 40 R3 40 R4 10 Currents 11 12 13