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 Remain constant Increase None of these Decrease Remain constant Increase None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Semi-conductors Inductors Insulators Conductors Semi-conductors Inductors Insulators Conductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One commercial unit of energy equals One watt-hour One kilowatt-hour One watt-hour Ten kilowatt-hour One watt-hour One kilowatt-hour One watt-hour Ten kilowatt-hour ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has large number of turns Has lower wattage rating Has higher wattage rating Offers large number of tapping Has large number of turns Has lower wattage rating Has higher wattage rating Offers large number of tapping ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load Remains same Decreases Increases None of these Remains same Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Semi-conductors Small resistors Dc circuits High currents Semi-conductors Small resistors Dc circuits High currents ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS