what is the difference between resistance, reostart, resistivity???
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Resistance is the opposition that a substance offers to the flow of electric current.
Rheostat is an electrical instrument used to control a current by varying the resistance.
Resistivity is a measure of the resistance of a given size of a specific material to electrical conduction.
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ramcyzshen75:
what about resistor
A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit
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Resistance if an object depends upon its shape and material of the conductor. Resistivity (rho) is the instrinsic property of a material and is directly proportional to the total resistance R. Rheostat is an resistor with two terminals while resistance is continuously variable by a spider on it.
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