Current Electricity Resistance of a tungsten lamp _____ as applied voltage increases. Increases Decreases Remains same None of the listed here Increases Decreases Remains same None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electric filament bulb can be worked from AC supply only Battery supply only DC supply only All of the listed here AC supply only Battery supply only DC supply only All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Negative Positive None of the listed here Zero Negative Positive None of the listed here Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Current velocity through a copper conductor is nearly 3 x 108 m/s independent of current strength the same as propagation velocity of electric energy of the order of a few ^.s/m nearly 3 x 108 m/s independent of current strength the same as propagation velocity of electric energy of the order of a few ^.s/m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Impedance Resistance Inductance Capacitance Impedance Resistance Inductance Capacitance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will Decrease None of these Remain constant Increase Decrease None of these Remain constant Increase ANSWER DOWNLOAD EXAMIANS APP
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