Current Electricity If the efficiency of a machine is to be high, what should be low? True component of power kWh consumed Input power Losses True component of power kWh consumed Input power Losses ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is Zero Positive None of the listed here Negative Zero Positive None of the listed here Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open Rest of the two bulbs will not light All three bulbs will light There will be heavy current in the main line The other two bulbs will light Rest of the two bulbs will not light All three bulbs will light There will be heavy current in the main line The other two bulbs will light ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 600 Ω 400 Ω 1000 Ω 800 Ω 600 Ω 400 Ω 1000 Ω 800 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For testing appliances, the wattage of test lamp should be Any value Low High Very low Any value Low High Very low ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 1.0 ohm 0.8 ohm 0.6 ohm 0.4 ohm 1.0 ohm 0.8 ohm 0.6 ohm 0.4 ohm ANSWER DOWNLOAD EXAMIANS APP
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