Resistivity of a semiconductor depends on

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(B) Resistivity $(\rho)$ is an intrinsic property of a material. It depends on the atomic nature of the material, such as the concentration of charge

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Atomic nature of semiconductor

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(B) Resistivity $(\rho)$ is an intrinsic property of a material. It depends on the atomic nature of the material, such as the concentration of charge carriers and their mobility, which are determined by the atomic structure and temperature. It does not depend on the geometric dimensions like length, area of cross-section, or the shape of the semiconductor. Therefore, the correct option is $(B)$.

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