Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 0.05 kWh 5 kWh 0.005 kWh 5 kWh 0.05 kWh 5 kWh 0.005 kWh 5 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of conductor varies inversely as Length Temperature Resistivity Area of cross-section Length Temperature Resistivity Area of cross-section ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Zero None of the listed here Positive Negative Zero None of the listed here Positive Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When current flows through heater coil it glows but supply wiring does not glow because Supply wires are made of superior material Current through supply line flows at slower speed Supply wiring is covered with insulation layer Resistance of heater coil is more than the supply wires Supply wires are made of superior material Current through supply line flows at slower speed Supply wiring is covered with insulation layer Resistance of heater coil is more than the supply wires 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 0.5 1.5 0.6 1 0.5 1.5 0.6 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The current in the circuit having constant resistance is tripled. The power increases 1/3 times 9 times 3 times 1/9 times 1/3 times 9 times 3 times 1/9 times ANSWER DOWNLOAD EXAMIANS APP
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