Current Electricity Which of the following materials has the least resistivity ? Copper Mercury Zinc Lead Copper Mercury Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
Current Electricity At 0 K, germanium behaves as A ferromagnetic substance A conductor An insulator A superconductor A ferromagnetic substance A conductor An insulator A superconductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is About 2 ohms per degree Zero Positive Negative About 2 ohms per degree Zero Positive Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Carbon Constantan Copper Silver Carbon Constantan Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Resistivity None of the listed here Current density Resistance Resistivity None of the listed here Current density Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The thickness of insulation provided on the conductor depends on Both magnitude of voltage and current The magnitude of current flowing through it None of the listed here The magnitude of voltage on the conductor Both magnitude of voltage and current The magnitude of current flowing through it None of the listed here The magnitude of voltage on the conductor ANSWER DOWNLOAD EXAMIANS APP
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