Current Electricity Resistance of a carbon filament lamp _______ as the applied voltage increases. None of the listed here Remains same Increases Decreases None of the listed here Remains same Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is Zero Negative Positive None of the listed here Zero Negative Positive None of the listed here 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? 100 V 200 V 50 V 150 V 100 V 200 V 50 V 150 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Capacitance Inductance Impedance Resistance Capacitance Inductance Impedance Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually An insulator A semiconductor None of the listed here A conductor An insulator A semiconductor None of the listed here A conductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Tungsten Copper Carbon Cast iron Tungsten Copper Carbon Cast iron ANSWER DOWNLOAD EXAMIANS APP
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