Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is Negative About 2 ohms per degree Positive Zero Negative About 2 ohms per degree Positive Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Zero Positive None of the listed here Negative Zero Positive None of the listed here Negative 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 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 decreased Length of heating element has no effect on heating if water None of these Length of heating element should be increased Length of heating element should be decreased Length of heating element has no effect on heating if water None of these Length of heating element should be increased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following quantities remain the same in all parts of a series circuit? Power Resistance Current Voltage Power Resistance Current Voltage ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Electrons and ions Nucleus Electrons Atoms Electrons and ions Nucleus Electrons Atoms ANSWER DOWNLOAD EXAMIANS APP
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