Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Carbon Porcelain Manganin Copper Carbon Porcelain Manganin Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The current in the circuit having constant resistance is tripled. The power increases 9 times 3 times 1/3 times 1/9 times 9 times 3 times 1/3 times 1/9 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 3 Q resistor having 2 A current will dissipate the power of 4 watts 8 watts 2 watts 6 watts 4 watts 8 watts 2 watts 6 watts 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? 200 V 150 V 50 V 100 V 200 V 150 V 50 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 0.005 kWh 5 kWh 0.05 kWh 5 kWh 0.005 kWh 5 kWh 0.05 kWh 5 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Capacitor Inductor Resistor Reactor Capacitor Inductor Resistor Reactor ANSWER DOWNLOAD EXAMIANS APP
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