Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 0.6 1 1.5 0.5 0.6 1 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Both positive and negative charges Neutral particles only Positive charges only Negative charges only Both positive and negative charges Neutral particles only Positive charges only Negative charges only 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 2 kWh 5 kWh 6 kWh 3.2 kWh 2 kWh 5 kWh 6 kWh 3.2 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 150 V 50 V 100 V 200 V 150 V 50 V 100 V 200 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The example of non-ohmic resistance is Aluminium wire tungsten wire Carbon resistance Copper wire Aluminium wire tungsten wire Carbon resistance Copper wire ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For testing appliances, the wattage of test lamp should be Low High Any value Very low Low High Any value Very low ANSWER DOWNLOAD EXAMIANS APP