Current Electricity If the efficiency of a machine is to be high, what should be low? kWh consumed Losses Input power True component of power kWh consumed Losses Input power True component of power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Nucleus Electrons Atoms Electrons and ions Nucleus Electrons Atoms Electrons and ions ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A thermistor has Variable temperature coefficient Positive temperature coefficient Negative temperature coefficient Zero temperature coefficient Variable temperature coefficient Positive temperature coefficient Negative temperature coefficient Zero temperature coefficient ANSWER DOWNLOAD EXAMIANS APP
Current Electricity E. M. F. In a circuit Increases circuit resistance Decrease circuit resistance Maintains potential difference None of the listed here Increases circuit resistance Decrease circuit resistance Maintains potential difference None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best conductor of electricity? Copper Zinc Gold Silver Copper Zinc Gold Silver ANSWER DOWNLOAD EXAMIANS APP
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