How many types of potentiometer?

Answer 1

There are basically two types of resistors.
-Fixed resistors
-Variable resistors

FIXED TYPE:
Fixed resistors are classified into 4 types based on various factors like manufacturing style,resistance range,power rating etc.
The four types of fixed resistors are
1)Carbon composition
2)Carbon film
3)Metal film(again classified into thick film resistors and thin film resistors)
4)Wire wound-which consists of power style type and precision style type

VARIABLE TYPE:
They are used in electronic circuits to adjust the value of voltages and currents.Ex. They are used in televisions as volume control,brightness control etc. There are three types of variable resistors.They are
1)Potentiometer-classified into carbon potentiometer and wire wound potentiometer
2)Rheostat
3)Trimmer

Wire-wound, carbon compound, metal strip, and in modern times, the silicon transistors in linear region are used as resistors

Answer 2

there are 3 types capacitors -
There are lots and lots and lots of capacitor types.

My usual on-line vendor lists these:

I'm just counting electrically different, not even package types.

There are basic types and there are usually subtypes within the main types

Basic types you have

Ceramic and ceramic comes in a large choice of ceramic dielectric type such as X7R, Z5U, COG to name some popular ones

Aluminum Electrolytic - big aluminum cans with wound aluminum foil and liquid electrolyte

film - different dielectric films wound with foil electrodes - mylar, polyester, polystyrene, polycarbonate

tantalum - solid and liquid tantalum slugs in different sizes and ESR for bulk capacitance.

Within package types there are several main ones and then within each there are subtypes

Surface Mount - usually chips but also plastic packages and in many sizes

Through hole - these come in radial, axial, and each in a lot of sizes and subshapes

Terminals (tabs or screw terminals for physically large stand alone capacitors)

As for the electrical differences and usage applications, that could take a whole book to describe.

Answer 3

Various types of resistors are:

1. fixed carbon resistors

2. fixed wire-wound

3. adjustable wire-wound

4. potentiometer

5. rheostat