Physics Lesson 15.2.3 - Resistors

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Welcome to our Physics lesson on Resistors, this is the third lesson of our suite of physics lessons covering the topic of Electric Resistance. Combinations of Resistors, you can find links to the other lessons within this tutorial and access additional physics learning resources below this lesson.

Resistors

Resistors are electrical appliances that are used to convert electrical energy into heat. This is achieved by winding a conducting wire in a spring-like form, in order to confine a long wire in a narrow space.

As discussed in the previous paragraph, longer the conductor, higher the resistance it displays to the current flow. Therefore, resistors usually have a high resistance.

Practically, all electric appliances installed in a circuit have a certain resistance, so they can be considered as resistors. However, typically we refer to resistors when the main purpose of an electrical appliance is to convert the electrical energy into heat.

The symbol of resistor in an electric circuit is

You have reached the end of Physics lesson 15.2.3 Resistors. There are 5 lessons in this physics tutorial covering Electric Resistance. Combinations of Resistors, you can access all the lessons from this tutorial below.

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