Aresistance in an electric circuit.

Resistor provides resistance in an electric circuit.

Resistance is a two terminal circuit element that impedes current flow in the electric system. It is primarily used to regulate the flow of current etc. As a process, electrons in the current collide with the resistor material ions thereby making it stringent for the current to flow, thereby causing resistance in the process.

For example, a regulator of fan is used to increase and decrease its speed, this is because of the involvement of a variable resistor.

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sodium is solid at rt

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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