Current Electricity Insulators have _______ temperature co-efficient of resistance. Positive None of the listed here Negative Zero Positive None of the listed here Negative Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? kWh consumed Losses True component of power Input power kWh consumed Losses True component of power Input power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The insulation on a current carrying conductor is provided To prevent leakage of current Both of the listed here To prevent shock None of above factors To prevent leakage of current Both of the listed here To prevent shock None of above factors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When one lag of parallel circuit is opened out the total current will Become zero Decreases None of the listed here Increases Become zero Decreases None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 3 Q resistor having 2 A current will dissipate the power of 8 watts 6 watts 4 watts 2 watts 8 watts 6 watts 4 watts 2 watts 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 Offers large number of tapping Has higher wattage rating Has large number of turns Has lower wattage rating Offers large number of tapping Has higher wattage rating ANSWER DOWNLOAD EXAMIANS APP
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