Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct? 40 W lamp will fuse Both lamps will glow equally bright 100 W lamp will glow brighter 40 W lamp will glow brighter 40 W lamp will fuse Both lamps will glow equally bright 100 W lamp will glow brighter 40 W lamp will glow brighter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 10 Ω 11 Ω 9 Ω 12.1 Ω 10 Ω 11 Ω 9 Ω 12.1 Ω 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 has no effect on heating if water Length of heating element should be increased Length of heating element should be decreased None of these Length of heating element has no effect on heating if water Length of heating element should be increased Length of heating element should be decreased None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Rheostat Wattmeter Galvanometer Voltmeter Rheostat Wattmeter Galvanometer Voltmeter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity SI unit of power is Watt-hour Watt Coulomb Henry Watt-hour Watt Coulomb Henry ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is 55 ohms 5 ohms 15 ohms 10 ohms 55 ohms 5 ohms 15 ohms 10 ohms ANSWER DOWNLOAD EXAMIANS APP
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