Current Electricity Constantan wire is used for making starndard resistance because it has 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 High specific resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Current velocity through a copper conductor is of the order of a few ^.s/m independent of current strength the same as propagation velocity of electric energy nearly 3 x 108 m/s of the order of a few ^.s/m independent of current strength the same as propagation velocity of electric energy nearly 3 x 108 m/s ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Electrons Atoms Nucleus Electrons and ions Electrons Atoms Nucleus Electrons and ions ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually An insulator A semiconductor None of the listed here A conductor An insulator A semiconductor None of the listed here A conductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best conductor of electricity? Gold Zinc Silver Copper Gold Zinc Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of 220 V, 100 W lamp will be 484 ft 4840 Q 48.4 Q 4.84 Q 484 ft 4840 Q 48.4 Q 4.84 Q ANSWER DOWNLOAD EXAMIANS APP
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