The S-I unit of resistivity is ……………………
A) ohm
B) meter
C) ohm-meter
D) ohm/meter
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Name the following : i. Full form of CGS unit system ii. Full form of FPS unit system
i. Centimetre Gram Second ii. Foot Pound Second iii. Metre (m) iv. Cd v. Kelvin (K) vi. Ampere (A)
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What is thermal resistivity? What does it depend upon?
i. Thermal resistivity (ρT) is the reciprocal of thermal conductivity (k). ii. It is characteristic of a material.
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Which of the following metal conductors has least resistivity value?
Correct option is B) silver
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The values of resistivity of alloys are 30 – 100 times larger
B) The values of resistivity of alloys are smaller than those of metals
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A wire of length lm and radius 0.1 mm has a resistance of 100 Ω. The resistivity of the material is ………………….
B) 3.14 × 10-6 Ω – m
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Which one of the following material has high resistivity
Correct option is D) rubber
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Which among the following materials have their resistivity of the order of 1014 to 1016 Ω – m
C) insulators
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Which among the material has greater resistivity at room temperature ?
Correct option is B) Glass
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State SI unit of resistivity.
SI unit of resistivity is ohm-metre (Ω m).
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The resistivity of Nichrome is 10^-6 Ω-m. The wire of this material has radius of 0.1 mm with resistance 100 Ω, then the length will be
Correct option is: (A) 3.142 m
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