Resistor is Active or Passive?

Are you familiar with resistors? If you’re into electronics, then you probably are. Resistors are essential components in electronic circuits, and they come in different types. One of the most common questions asked about resistors is whether they’re active or passive. In this article, we’ll be discussing the difference between active and passive resistors and what makes them unique.

Now let me explain in detailed on “resistor is active or passive.”

Resistor is Active or Passive?

A resistor is a fundamental component used in electronic circuits to limit the flow of electric current. It’s an electrical component that opposes the flow of current through it. Resistors come in different types and sizes depending on their use in a particular circuit.

When it comes to identifying resistors as active or passive components, things can get a bit tricky. However, it’s important to understand the difference between these two terms since it affects how they function within an electronic circuit.

What Are Active Components?

Active components are devices that require an external source of energy to function correctly. These devices have gain and can produce power output greater than their input power. Some examples of active components include transistors, diodes, and operational amplifiers.

What Are Passive Components?

Passive components are devices that don’t require any external source of energy to function correctly. They don’t have gain and can’t amplify signals or produce power output greater than their input power. Some examples of passive components include resistors, capacitors, and inductors.

Resistor – An Active or Passive Component?

Resistors are classified as passive components since they don’t have any gain or amplification capability within themselves. They only allow the flow of electric current while resisting its flow by producing heat dissipation due to resistance.

However, some people might argue that resistors could be considered as active components when used in specific applications such as temperature sensors where changes in temperature cause variations in resistance values leading to voltage changes across them.

In summary, while there may be some debate around whether resistors should be classified as active or passive devices based on specific applications’ requirements, for general purposes in electronics circuits design they are regarded as passive elements because they lack internal gain capabilities like other active elements such as transistors or op-amps.


understanding the difference between active and passive components is crucial when designing electronic circuits. Knowing which type of component you need will help ensure your circuit functions optimally without any unwanted surprises down the line.


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