2V 20 1 V 2 N 2V I3 1 V I4 1Ω FIGURE Q22.15

Consider an electric circuit below that consists of five resistors connected to a battery proving potential difference e =210 mV. The resistances of the resistors are: R1= 4.0 S, R2= 3.0 N, R3= 6.0 N, R4= 2.0 N, and R5= 5.O N. R1 R2 R4 R3 R5 Complete the following calculations and show all steps necessary and making sure it is clear which part you are solving for. a) Determine the equivalent resistance of the circuit. Include all necessary sketches, annotations and labels in this section. b) Determine the total current in the circuit c) Determine potential difference across the resistor R1. d) Determine the power dissipated by resistor R4. Enter the answer to part d) below. Provide your answer in milliwatts with a precision of two places after decimal.

Determine the currents through the resistors, R2, R5, R6, and R7 in the set of junctions and branches shown in the figure, where I = 19.0 A, I3 = 2.4 A, and I4 = 8.2 A. Hint: Use Kirchhoff's junction rule; be sure to consider the branches where a current is shown, and assume the branches that appear disconnected are connected to other parts of the circuit. I2 = A I5 = I6 = A I7 = A R1 R2 R3 R4 R6 R7

The figure below shows five resistors and two batteries connected in a circuit. What are the currents I,, I2, and I3? (Consider the following values: R, = 1.08 0, R2 = 2.20 0, R3 = 3.18 0, R4 = 4.04 0, R5 = 6.06 0. Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign. Indicate the direction with the sign of your answer.) A A I3 = A Rs R3 12.0 V R2 9.00 V R1