Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.2% 0.3% None of the listed here 0.4% 0.2% 0.3% None of the listed here 0.4% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is 3.2 kWh 2 kWh 6 kWh 5 kWh 3.2 kWh 2 kWh 6 kWh 5 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a series circuit with unequal resistances The highest resistance has the most of the current through it The lowest resistance has the highest current The highest resistance has the highest voltage drop The lowest resistance has the highest voltage drop The highest resistance has the most of the current through it The lowest resistance has the highest current The highest resistance has the highest voltage drop The lowest resistance has the highest voltage drop ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 1 0.6 1.5 0.5 1 0.6 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One commercial unit of energy equals One watt-hour Ten kilowatt-hour One kilowatt-hour One watt-hour One watt-hour Ten kilowatt-hour One kilowatt-hour One watt-hour ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Temperature coefficient of resistance is expressed in terms of mhos/°C ohms/°C mhos/ohm°C ohms/ohm°C mhos/°C ohms/°C mhos/ohm°C ohms/ohm°C ANSWER DOWNLOAD EXAMIANS APP
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