Current Electricity Semiconductors have _______temperature co-efficient of resistance. Zero None of the listed here Negative Positive Zero None of the listed here Negative Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a carbon filament lamp _______ as the applied voltage increases. None of the listed here Decreases Remains same Increases None of the listed here Decreases Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Variable resistors Semiconductors Thermistor Varistors Variable resistors Semiconductors Thermistor Varistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude of current remains constant Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude and direction of current changes with time Magnitude of current remains constant Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude and direction of current changes with time ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Nichrome wire is an alloy of Copper and silver Nickel and chromium Lead and zinc Chromium and vanadium Copper and silver Nickel and chromium Lead and zinc Chromium and vanadium ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best conductor of electricity? Zinc Silver Copper Gold Zinc Silver Copper Gold ANSWER DOWNLOAD EXAMIANS APP