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 A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.3% 0.4% None of the listed here 0.2% 0.3% 0.4% None of the listed here 0.2% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High specific resistance Low specific resistance Negligibly small temperature co-efficient of resistance High melting point High specific resistance Low specific resistance Negligibly small temperature co-efficient of resistance High melting point ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Positive Zero None of the listed here Negative Positive Zero None of the listed here Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Current density None of the listed here Resistivity Resistance Current density None of the listed here Resistivity Resistance ANSWER DOWNLOAD EXAMIANS APP
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