Question

Define resistivity of a conductor

Answer 1

resistivity of a conductor: a substance which allows passage to electric charges through it easily is called as the resistivity of a conductor.

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Answer 2

Answer:

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Define resistance of a conductor.?

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$\Large\bold\star\underline{\underline\textbf{Resistance of a conductor\:}}$

→ The resistance of a conductor is defined as the obstruction offered by the conductor to the flow of electric current.

» According to ohm's law

» R = V / I

» R = Resistance

» V = Potential difference

» I = Current flowing

→ Therefore , resistance of the conductor (R) may be defined as the ratio of the potential difference (V) between the two ends of the conductor to the current ( I ) flowing through it.

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$\Large\bold\star\underline{\underline\textbf{Cause of resistance\:}}$

→ Resistance of the conductor is due to the collision of electrons with the atoms / ions of the conductor , while drifting towards the positive and of the conductor.

→ Resistance of the conductor depends upon the dimensions.

» i.e.

1). Length ( L )

2). Cross-section area ( A ) of the conductor and also the nature of the material of the conductor.

Hope it helped u.

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