material
The correct answer is material.
Resistivity (ρ) is an intrinsic property of a material that quantifies how strongly a material opposes the flow of electric current. It's independent of the conductor's dimensions (length and cross-sectional area) or the applied potential difference. The resistivity of a material is determined by its atomic structure and the number of free electrons available for conduction. Different materials have different atomic structures and electron configurations, leading to variations in their resistivity.
While the resistance (R) of a conductor is related to its resistivity, length (L), and cross-sectional area (A) through the formula:
\( R = \rho \frac{L}{A} \)
Resistivity (ρ) itself remains constant for a given material at a specific temperature. The length and cross-sectional area affect the resistance, not the resistivity of the material.
The potential difference affects the current flowing through the conductor (Ohm's Law: V = IR), but it doesn't alter the material's inherent resistivity.
Similar Questions
- Identify the conductor having the lowest resistivity.
- Identify the conductor having the highest resistivity.
- Identify the conductor having the lowest resistivity.
- Identify the conductor having the highest resistivity.
Important Questions from Resistivity of Various Materials
Which of the following graph correctly represents the variation of resistivity 's' with temperature 'T' for a semiconductor material ?
The correct sequence of increasing order of electrical resistivity of the given material is-
- Identify the conductor having the lowest resistivity.
- Identify the conductor having the highest resistivity.
- Identify the conductor having the lowest resistivity.
