In this article, we will be talking about variable resistors, circuit symbols, variable resistor diagrams, function
What is resistor definition?
Ans:-The resistor is a passive electrical component to create resistance in the flow of electric current
Resistor type:-
- Wire wound resistor
- Carbon composition resistor
- Wire wound resistor -
we use a wire wound resistor when there is -⟣high temperature ⟣high voltage
⟣high current
⟣high watt
⟣the value is written on it
⟣the body of the resistor is hard
- Carbon composition resistor
carbon composition resistors are divided into three types
- fixed resistor
- variable resistor
- dependent resistor
Fixed Resistor
- Metal film resistor
- Carbon film resistor
- Feasible film resistor
Variable Resistor
- Trimmer resistor
- Printed resistor
- Potentiometer
Dependent Resistor
- Volt dependent resistor
- Current dependent resistor
- Temperature-dependent resistor
Variable resistor
Potentiometer and Trimmer & Printed Resistor
1. it used to control the flow of current in the circuit
2. it is a variable resistor
3. the value is changing mechanically or electrically
4. the value is 10ohm to 20 megaohm
5. it has 3 terminalsthe potentiometer is larger than the trimmer
6. the symbol is:-
Printed Resistor
1. This is also a Variable Resistor
2. The carbon layer print on the inductor plate
3. it is used for small wattage circuit
