Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 400 Ω 600 Ω 1000 Ω 800 Ω 400 Ω 600 Ω 1000 Ω 800 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of 220 V, 100 W lamp will be 4.84 Q 484 ft 4840 Q 48.4 Q 4.84 Q 484 ft 4840 Q 48.4 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance 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 5 kWh 0.005 kWh 5 kWh 0.05 kWh 5 kWh 0.005 kWh 5 kWh 0.05 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One commercial unit of energy equals One watt-hour One watt-hour Ten kilowatt-hour One kilowatt-hour One watt-hour One watt-hour Ten kilowatt-hour One kilowatt-hour ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 25 : 4 5 : 2 4 : 25 2 : 5 25 : 4 5 : 2 4 : 25 2 : 5 ANSWER DOWNLOAD EXAMIANS APP
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