Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct? Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter 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 Length of heating element should be decreased None of these Length of heating element should be increased Length of heating element has no effect on heating if water Length of heating element should be decreased None of these Length of heating element should be increased Length of heating element has no effect on heating if water ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of A cube of carbon A cube of copper The unit length of wire A column of mercury A cube of carbon A cube of copper The unit length of wire A column of mercury ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Decreases Remains unchanged None of the listed here Increases Decreases Remains unchanged None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Zero Positive None of the listed here Negative Zero Positive None of the listed here Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The SI unit of power is Watt Henry Coulomb Watt-hour Watt Henry Coulomb Watt-hour ANSWER DOWNLOAD EXAMIANS APP
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