An electrolytic capacitor is generally made to provide

low capacitance
fixed capacitance
variable capacitance
large value of capacitance

The correct answer is: D. large value of capacitance.

An electrolytic capacitor is a type of capacitor that uses an electrolytic liquid as one of its plates. This type of capacitor can have a very large capacitance, which makes it useful for applications such as power supplies and filters.

The other options are incorrect because:

  • A. Low capacitance is not the main purpose of an electrolytic capacitor.
  • B. Fixed capacitance is the type of capacitance that electrolytic capacitors provide.
  • C. Variable capacitance is not the type of capacitance that electrolytic capacitors provide.