2. [1110 Points] DETAILS PREVIOUS ANSWERS For the circuit shown in the gure below, the capacitors were each discharged before being connected to the voltage source 1/ = 184 V. 4.0 F 12.0 F . \"I l? " 15.0w (a) Find the equivalent capacitance of the combination. my IF [b] Find the charge stored on the positivelyr charged plate of each capacitor. 15.0 I.IF capacitor INC 4.0 |JF capacitor INC 12.0 I.IF capacitor INC (c) Find the voltage across each ca Jacitor. 15.0 I.IF capacitor V 4.0 |JF capacitor V 12.0 pF capacitor V (cl) Find the energy stored in each capacitor. 15.0 I.IF capacitor m] 4.0 |JF capacitor m] 12.0 I.IF capacitor X I'TIJ 5. [-/4 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A parallel-plate capacitor has charge of magnitude 8.40 JC on each plate and capacitance 3.20 UF when there is air between the plates. The plates are separated by 2.30 mm. With the charge on the plates kept constant, a dielectric with K = 2 is inserted between the plates, completely filling the volume between the plates. (Enter the magnitudes.) (a) What is the potential difference between the plates of the capacitor (in V) before and after the dielectric has been inserted? before after (b) What is the electrical field at the point midway between the plates (in V/m) before and after the dielectric is inserted? before V/m after v/m2. [2/3 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTIC In the circuit of the figure below, the switch S has been open for a long time. It is then suddenly closed. Take & = 10.0 V, R, = 41.0 kQ, R, = 140 kQ, and C = 11.5 pF. R S R2 (a) Determine the time constant before the switch is closed. 2.08 vs (b) Determine the time constant after the switch is closed. 1.61 S (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. (Assume / is in A and t is in s. Do not enter units in your expression. Use the following as necessary: t.). [112 Points] DETAILS PREVIOUS ANSWERS | MY NC The resistors in the circuit below.I have the following values: R1 = 7.90 11, R2 = 7.00 I], and R3 = 3.60 [1. The two batteries each have a voltage of 5.00 V. R3 52 [a] Find the current in through R3. w [b] How.I much power do the batteries deliver to R3? |:|x What is the basic relationship for power in terms of current and resistance? W