QI: Using the information provided, find the unknown quantities for the circuit shown in figure(1). P = 30 W 30 Ω R2 R R2 E 2 A PR: Figure (1)

In the circuit shown in the figure below, C1=43µF, C2=33µF, C3=22µF, and a voltage Vab=43V is applied accross points a and b. After C1 is fully charged, the switch is thrown to the right. What is the final voltage on C3? Express your answer in units of V(Volts) using one decimal place. a C2 C3 b

4. Verify Kirchhoff's junction rule by measuring current flows at the junction a. Write induvial values and sum them up to show conservation of charge. R1 R3 a R4 {I R2 I1 €1 b 13 €3 12 €2 Circuit 4

Problem See the eircuit shown below. Write the expression for the current i, and the voltage Ur following the closing of the switch. Assume /= 12 mA, E= 10 V, l,= 1.5 mA, L 210 mH. R= 7.1 k2, and Ry 15 k2. X. -a + Ry R2