(a) What do you understand by the resistivity" of a substance?
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Answer:
Explanation:
Resistivity or specific resistance of a body is a characteristic by which one can judge the electrical property of a substance. ... Resistivity quantifies how strongly a material opposes the flow of electrons through it. If a material has low resistivity, it means it offers less resistance to the electric current
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Conduction of Current depends Upon Resistivity
Explanation:
- The Electrical Quantity that helps in measurement of how the electric current flow reduces through a materiel or device.
- The Unit of Resistance for its measurement is Ohms (
)
- In case of fluid flow (water) through pipes, the thinner the pipe, the bigger is resistance value, hence the flow of water gets reduced.
- For Poor conductors resistivity is Higher.
- Resistivity is good characteristic property of any material, as it helps in comparison so many properties but conduction of electric current depends upon their ability of resistivity.
- Any conductors unit length and unit cross sectional area, shows the conduction or electrical resistance, Resistivity.
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