v(t) + C1 C2 C3 C4 4 Question 6: What is the expression for the current flowing through capacitor C2? (Be sure to enter an answer here and show your calculations in detail on your pa

From the circuit shown below calculate the following + Vc - C=0.05pf 10V R1=100k R2=100k a) Find the mathematical expression for the voltage across the capacitor from the previous figure, if the switch is set to position 1 at t=0s. Calculate the voltage vc in t=10ms. Repeat the previous for ic and VR,- b) Find the mathematical expression for the voltages vc and VR, and the current iç if the switch is set to position 2 at t=30ms (Assume that the leakage resistance across capacitor =c0ohms) c) Find the mathematical expression for the voltages ve and (VR, + VR2) and for the current ic, if the switch is set to position 3 at t=48 ms. Find the voltages vc and VR + VR2 and the current iC at t = 100ms. d) Plot the waveforms obtained in the previous on the same time axis for each voltage and for current.

In the diagram below, the switch S has been closed for a long time. A) What is the output voltage Vout? What is the charge on the capacitor? b) The switch is opened, so the output voltage increases. What is the time constant that describes the charging of the capacitor in terms of R and C? c) When Vout reaches 10 V, the switch closes and the capacitor begins to discharge. What is the time constant that describes the discharging in terms of R and C? Hint: Apply Kirchhoff's Rules to both loops and the sum of the currents at the junction above the capacitor in the diagram, and use I=dq/dt. If the switch opens when Vout reaches a lower value, say 5V, the capacitor will charge again, and thus one can cycle the voltage with a time constant determined by the circuit: this demonstrates the principle of operation of an electronic timer. 4R S 15 V Vout R

2. A devise that stores charge is called An inductor O A potential device A Coulomb O A capacitor