Current Electricity At 0 K, germanium behaves as An insulator A superconductor A ferromagnetic substance A conductor An insulator A superconductor A ferromagnetic substance A conductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains Length of heating element should be increased None of these Length of heating element has no effect on heating if water Length of heating element should be decreased Length of heating element should be increased None of these Length of heating element has no effect on heating if water Length of heating element should be decreased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 0.6 0.5 1.5 1 0.6 0.5 1.5 1 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Cross-sectional area Material Temperature Shape of cross-section Cross-sectional area Material Temperature Shape of cross-section ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With rise in temperature the resistance of pure metals Increases Remains constant Decreases First increases and then decreases Increases Remains constant Decreases First increases and then decreases 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 Negative Positive Zero About 2 ohms per degree Negative Positive Zero ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS