Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Variable resistors Semiconductors Varistors Thermistor Variable resistors Semiconductors Varistors Thermistor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of The unit length of wire A column of mercury A cube of carbon A cube of copper The unit length of wire A column of mercury A cube of carbon A cube of copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? True component of power kWh consumed Losses Input power True component of power kWh consumed Losses Input power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The SI unit of power is Coulomb Henry Watt-hour Watt Coulomb Henry Watt-hour Watt 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 conductor None of the listed here A semiconductor An insulator A conductor None of the listed here A semiconductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct? Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter ANSWER DOWNLOAD EXAMIANS APP
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