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 specific resistance of a metallic conductor ______ with rise in temperature. Remains unchanged Decreases None of the listed here Increases Remains unchanged Decreases None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of A column of mercury A cube of copper The unit length of wire A cube of carbon A column of mercury A cube of copper The unit length of wire A cube of carbon ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around 1.8 x 10-8 ω-m 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.6 x 10-8 ω-m 1.8 x 10-8 ω-m 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.6 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Thermal effect Magnetic effect Chemical effect Luminous effect Thermal effect Magnetic effect Chemical effect Luminous effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The example of non-ohmic resistance is Aluminium wire Copper wire tungsten wire Carbon resistance Aluminium wire Copper wire tungsten wire Carbon resistance ANSWER DOWNLOAD EXAMIANS APP