Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Insulators Inductors Semi-conductors Conductors Insulators Inductors Semi-conductors Conductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Material Shape of cross-section Cross-sectional area Temperature Material Shape of cross-section Cross-sectional area Temperature ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has lower wattage rating Offers large number of tapping Has large number of turns Has higher wattage rating Has lower wattage rating Offers large number of tapping Has large number of turns Has higher wattage rating ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of human body is about 10 ohm 200 ohm 25 ohm 1000 ohm 10 ohm 200 ohm 25 ohm 1000 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High melting point High specific resistance Negligibly small temperature co-efficient of resistance Low specific resistance High melting point High specific resistance Negligibly small temperature co-efficient of resistance Low specific resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The current in the circuit having constant resistance is tripled. The power increases 3 times 1/9 times 9 times 1/3 times 3 times 1/9 times 9 times 1/3 times ANSWER DOWNLOAD EXAMIANS APP
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