Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is Negative None of the listed here Positive Zero Negative None of the listed here Positive Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is 33 V 80 V 132 V 66 V 33 V 80 V 132 V 66 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Small resistors High currents Dc circuits Semi-conductors Small resistors High currents Dc circuits Semi-conductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has Low specific resistance Negligibly small temperature co-efficient of resistance High melting point High specific resistance Low specific resistance Negligibly small temperature co-efficient of resistance High melting point High specific resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The thickness of insulation provided on the conductor depends on None of the listed here The magnitude of current flowing through it Both magnitude of voltage and current The magnitude of voltage on the conductor None of the listed here The magnitude of current flowing through it Both magnitude of voltage and current The magnitude of voltage on the conductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 ANSWER DOWNLOAD EXAMIANS APP
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