Current Electricity Conductivity is the reciprocal of Current density Resistance None of the listed here Resistivity Current density Resistance None of the listed here Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude of current remains constant Magnitude and direction of current changes with time ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Copper Manganin Porcelain Carbon Copper Manganin Porcelain Carbon ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 150 V 200 V 50 V 100 V 150 V 200 V 50 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Remains unchanged Increases None of the listed here Decreases Remains unchanged Increases None of the listed here Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 5 kWh 0.05 kWh 5 kWh 0.005 kWh 5 kWh 0.05 kWh 5 kWh 0.005 kWh ANSWER DOWNLOAD EXAMIANS APP
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