What are the uses of series combination capacitors in your daily life?

Answer 1

Often, I need a capacitor of a certain value for a project I am building and I do not

have one. I find myself in this awkward situation on almost every rainy day. Rather

than going out in the rain to get one, I can combine two capacitors that I do have,

to yield the capacitance value that I need. I have the choice to combine them in

series or in parallel.

-- When I configure therm in parallel, their combined effective capacitance is

(the sum of their individual values).

-- When I configure them in series, their combined effective capacitance is

(the product of their individual values)/(the sum of their individual values)

I typically choose series, just to make the math harder and give myself the practice.