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