Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Decreases Increases None of the listed here Remains unchanged Decreases Increases None of the listed here Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude of current remains constant Magnitude and direction of current changes with time ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has large number of turns Offers large number of tapping Has lower wattage rating Has higher wattage rating Has large number of turns Offers large number of tapping Has lower wattage rating Has higher wattage rating ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Current density Resistance None of the listed here Resistivity Current density Resistance None of the listed here Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity SI unit of power is Coulomb Henry Watt-hour Watt Coulomb Henry Watt-hour Watt ANSWER DOWNLOAD EXAMIANS APP
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