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What are resistors?

Updated: 10/23/2022
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8y ago

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A resistor is an electrical device that limits current in a circuit. It converts electrical energy into thermal energy (heat), and drops voltage. Conductors in an electrical circuit allow current to flow through them will little resistance. The medium in a resistor, the resistive material, is not a good conductor, and will "resist" the current that wants to flow through it. This is how it limits current in a circuit. A resistor is rated according to its resistance and it ability to dissipate heat. It will be rated in ohms of resistance and in watts. A one ohm resistor will allow one amp of current to flow through it when one volt is applied across it. It will generate one watt of thermal energy, which it will have to dissipate as heat.
A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Resistors can also be used to provide a specific voltage for an active device such as a transistor.

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Related questions

What are those materials of resistors?

most of the resistors commonly used are carbon resistors


What is carbon composition resistors?

Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.


How do you find the resistance of a series circuit with n identical resistors?

The total resistance of resistors in series is simply the sum of the resistance values of those resistors. If the resistors are identical, then you can multiply the resistance of one of them by the number of resistors in the circuit.


Who invented resistors?

Otis f.boykin invented resistors


What is the advantage of film resistors over carbon resister?

Film resistors have lower noise than carbon resistors.


What are Resistors wired in series?

Resistors are wired in series when they are connected in a line. The current flows through the resistors one after the other.


Two resistors are connected in parallel to a battery What must the votlage across these two resistors?

Both resistors will have the voltage of the battery.


What is carbon composition?

Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.


What are resistors that produce a straight line graph called?

Linear resistors


What are resistors and why are they used?

Resistors are like funnels, they restrict the flow of current.


Why resistors are connecting?

resistors are used to resist the flow of current in a circuit.......


What are resistors and what are they important?

Resistors are a material that resists the flow of electrons. The resistors are materials that resist electric current energy to be changed into other forms.