Current Electricity Current velocity through a copper conductor is nearly 3 x 108 m/s independent of current strength the same as propagation velocity of electric energy of the order of a few ^.s/m nearly 3 x 108 m/s independent of current strength the same as propagation velocity of electric energy of the order of a few ^.s/m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Vaccum tubes Circuits with low current densities High voltage circuits Carbon resistors Vaccum tubes Circuits with low current densities High voltage circuits Carbon resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When one lag of parallel circuit is opened out the total current will Become zero None of the listed here Increases Decreases Become zero None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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 Positive None of the listed here Zero Negative Positive None of the listed here Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Neutral particles only Positive charges only Negative charges only Both positive and negative charges Neutral particles only Positive charges only Negative charges only Both positive and negative charges ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best conductor of electricity? Zinc Copper Gold Silver Zinc Copper Gold Silver ANSWER DOWNLOAD EXAMIANS APP
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