Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.3% None of the listed here 0.2% 0.4% 0.3% None of the listed here 0.2% 0.4% 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 9 Ω 12.1 Ω 11 Ω 10 Ω 9 Ω 12.1 Ω 11 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are used As heating elements For inductive circuits As current stabilizers To suppress surges As heating elements For inductive circuits As current stabilizers To suppress surges ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? kWh consumed Input power Losses True component of power kWh consumed Input power Losses True component of power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load Remains same None of these Increases Decreases Remains same None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The filament of electrical bulb is made of Aluminium Steel Tungsten Nickel Aluminium Steel Tungsten Nickel ANSWER DOWNLOAD EXAMIANS APP
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