02. Resistivity
Current Electricity

152152 Metals have

1 zero resistivity
2 high resistivity
3 low resistivity
4 infinite resistivity
Current Electricity

152136 The resistivity of a material is found to be $10^{8} \Omega$ $-\mathrm{m}$. Then the material would be

1 Only insulator
2 Only metal
3 Only semiconductor.
4 Only Superconductor.
Current Electricity

152154 In which one of the following substances the resistance decreases with increase of temperature?

1 Carbon
2 Copper
3 Silver
4 Gold
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Current Electricity

152152 Metals have

1 zero resistivity
2 high resistivity
3 low resistivity
4 infinite resistivity
Current Electricity

152136 The resistivity of a material is found to be $10^{8} \Omega$ $-\mathrm{m}$. Then the material would be

1 Only insulator
2 Only metal
3 Only semiconductor.
4 Only Superconductor.
Current Electricity

152154 In which one of the following substances the resistance decreases with increase of temperature?

1 Carbon
2 Copper
3 Silver
4 Gold
Current Electricity

152152 Metals have

1 zero resistivity
2 high resistivity
3 low resistivity
4 infinite resistivity
Current Electricity

152136 The resistivity of a material is found to be $10^{8} \Omega$ $-\mathrm{m}$. Then the material would be

1 Only insulator
2 Only metal
3 Only semiconductor.
4 Only Superconductor.
Current Electricity

152154 In which one of the following substances the resistance decreases with increase of temperature?

1 Carbon
2 Copper
3 Silver
4 Gold