Current Electricity Which method can be used for absolute measurement of resistances? Ohm's law method Lorentz method Wheastone bridge method Releigh method Ohm's law method Lorentz method Wheastone bridge method Releigh method ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When current flows through heater coil it glows but supply wiring does not glow because Current through supply line flows at slower speed Supply wires are made of superior material Supply wiring is covered with insulation layer Resistance of heater coil is more than the supply wires Current through supply line flows at slower speed Supply wires are made of superior material Supply wiring is covered with insulation layer Resistance of heater coil is more than the supply wires ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? Input power kWh consumed Losses True component of power Input power kWh consumed Losses True component of power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. None of the listed here Positive Zero Negative None of the listed here Positive Zero Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following statement is true both for a series and a parallel D.C. circuit? Elements have individual currents Currents are additive Power are additive Voltages are additive Elements have individual currents Currents are additive Power are additive Voltages are additive ANSWER DOWNLOAD EXAMIANS APP
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