Current Electricity In which of the following substances the resistance decreases with increase in temperature? Constantan Copper Silver Carbon Constantan Copper Silver Carbon ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A thermistor has Negative temperature coefficient Positive temperature coefficient Zero temperature coefficient Variable temperature coefficient Negative temperature coefficient Positive temperature coefficient Zero temperature coefficient Variable temperature coefficient ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is Zero About 2 ohms per degree Negative Positive Zero About 2 ohms per degree Negative Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Temperature coefficient of resistance is expressed in terms of ohms/°C ohms/ohm°C mhos/°C mhos/ohm°C ohms/°C ohms/ohm°C mhos/°C mhos/ohm°C ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of 220 V, 100 W lamp will be 484 ft 4.84 Q 48.4 Q 4840 Q 484 ft 4.84 Q 48.4 Q 4840 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which method can be used for absolute measurement of resistances? Ohm's law method Wheastone bridge method Releigh method Lorentz method Ohm's law method Wheastone bridge method Releigh method Lorentz method ANSWER DOWNLOAD EXAMIANS APP
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