Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load None of these Remains same Decreases Increases None of these Remains same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Decreases Increases Remains unchanged None of the listed here Decreases Increases Remains unchanged None of the listed here 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 None of the listed here Positive Negative Zero None of the listed here Positive Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of two wires is 25 Ω when connected in series and 6 Ω when joined in parallel. The resistance of each wire is 20 Ω, 30 Ω 10 Ω, 20 Ω 5 Ω, 10 Ω 10 Ω, 15 Ω 20 Ω, 30 Ω 10 Ω, 20 Ω 5 Ω, 10 Ω 10 Ω, 15 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a few meters of wire conductor in closed electrical circuit is Very high High Low Practically zero Very high High Low Practically zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains None of these Length of heating element should be decreased Length of heating element has no effect on heating if water Length of heating element should be increased None of these Length of heating element should be decreased Length of heating element has no effect on heating if water Length of heating element should be increased ANSWER DOWNLOAD EXAMIANS APP
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