Current Electricity If the efficiency of a machine is to be high, what should be low? Losses Input power True component of power kWh consumed Losses Input power True component of power kWh consumed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually A semiconductor A conductor None of the listed here An insulator A semiconductor A conductor None of the listed here An insulator ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Carbon Cast iron Copper Tungsten Carbon Cast iron Copper Tungsten ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be 1/3 times 9 times 1/9 times 3 times 1/3 times 9 times 1/9 times 3 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to High currents Dc circuits Semi-conductors Small resistors High currents Dc circuits Semi-conductors Small resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will Heater will burn out Remains same Increases Decreases Heater will burn out Remains same Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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