Current Electricity The resistance of a straight conductor is independent of Cross-sectional area Temperature Shape of cross-section Material Cross-sectional area Temperature Shape of cross-section Material ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Thermistor Variable resistors Semiconductors Varistors Thermistor Variable resistors Semiconductors Varistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? True component of power Losses Input power kWh consumed True component of power Losses Input power kWh consumed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A thermistor has Negative temperature coefficient Variable temperature coefficient Zero temperature coefficient Positive temperature coefficient Negative temperature coefficient Variable temperature coefficient Zero temperature coefficient Positive temperature coefficient 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 Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 25 : 4 2 : 5 4 : 25 5 : 2 25 : 4 2 : 5 4 : 25 5 : 2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS