Current Electricity An instrument which detects electric current is known as Voltmeter Rheostat Galvanometer Wattmeter Voltmeter Rheostat Galvanometer Wattmeter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.4% None of the listed here 0.3% 0.2% 0.4% None of the listed here 0.3% 0.2% 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 Length of heating element has no effect on heating if water None of these Length of heating element should be increased Length of heating element should be decreased Length of heating element has no effect on heating if water None of these Length of heating element should be increased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Nichrome wire is an alloy of Copper and silver Nickel and chromium Lead and zinc Chromium and vanadium Copper and silver Nickel and chromium Lead and zinc Chromium and vanadium ANSWER DOWNLOAD EXAMIANS APP
Current Electricity SI unit of power is Watt-hour Henry Watt Coulomb Watt-hour Henry Watt Coulomb 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 5 Ω, 10 Ω 10 Ω, 20 Ω 10 Ω, 15 Ω 20 Ω, 30 Ω 5 Ω, 10 Ω 10 Ω, 20 Ω 10 Ω, 15 Ω ANSWER DOWNLOAD EXAMIANS APP
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