Current Electricity At 0 K, germanium behaves as A superconductor A conductor A ferromagnetic substance An insulator A superconductor A conductor A ferromagnetic substance An insulator 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 0.2% 0.3% None of the listed here 0.4% 0.2% 0.3% None of the listed here 0.4% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High melting point Low specific resistance Negligibly small temperature co-efficient of resistance High specific resistance High melting point Low specific resistance Negligibly small temperature co-efficient of resistance High specific resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Positive Negative None of the listed here Zero Positive Negative None of the listed here Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Current density Resistivity Resistance None of the listed here Current density Resistivity Resistance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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