Question

Difference b/w Resistance , Resistor , Resistivity , Rheostat.​

Answer 1

Answer:

One of the major difference between the resistance and the resistivity of the material is that the resistance opposes the flow of free electrons whereas the resistivity is the property of the material which defines the resistance of the material having specific dimension.

Explanation:

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Answer 2

Resistor : A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

Resistance :Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).

Resistivity: electrical resistance of a conductor of unit cross-sectional area and unit length.

Rheostat: an electrical instrument used to control a current by varying the resistance.

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