Question

Now let’s look at a specific problem involving series and parallel combinations of capacitors. Two capacitors, one with C1=6.0μF and the other with C2=3.0μF, are connected to a potential difference of Vab=18V. Find the equivalent capacitance, and find the charge and potential difference for each capacitor when the two capacitors are connected (a) in series and (b) in parallel.

PART A: Repeat this example for  Vab=18V and C1=C2=10μF. What is the equivalent capacitance for the capacitors when they are connected in series? (Ceq=?)

Express your answer in microfarads to two significant figures.

PART B: What is the charge on each capacitor from Part A when the capacitors are connected in series? (C1=C2=?)

Express your answer in microcolumbs as an integer.

PART C: What is the equivalent capacitance for the capacitors from Part A when they are connected in parallel? (Ceq=?)

Express your answer in microfarads to two significant figures.

PART D: What is the charge on each capacitor from Part A when the capacitors are connected in parallel? (C1=C2=?)

Express your answer in microcolumbs as an integer.

PART E: Find the ratio of the total stored charge for the parallel combination to that for the series combination from Part A.

Express your answer as a ratio to two significant figures.

QUESTION 2: A 5.80 μF parallel-plate air capacitor has a plate separation of 5.00 mm and is charged to a potential difference of 300 V .

Calculate the energy density in the region between the plates, in units of J/m3.

Answer 1