Current Electricity The current in the circuit having constant resistance is tripled. The power increases 1/3 times 3 times 9 times 1/9 times 1/3 times 3 times 9 times 1/9 times 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 0.3% None of the listed here 0.4% 0.2% 0.3% None of the listed here 0.4% 0.2% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across Rl Either Rl or Ri Ri None of them Rl Either Rl or Ri Ri None of them ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? True component of power Input power Losses kWh consumed True component of power Input power Losses kWh consumed 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 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For testing appliances, the wattage of test lamp should be Low Any value Very low High Low Any value Very low High ANSWER DOWNLOAD EXAMIANS APP
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