Current Electricity Current velocity through a copper conductor is independent of current strength nearly 3 x 108 m/s of the order of a few ^.s/m the same as propagation velocity of electric energy independent of current strength nearly 3 x 108 m/s of the order of a few ^.s/m the same as propagation velocity of electric energy ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A field of force can exist only between Two ions Two molecules Two atoms Two metal particles Two ions Two molecules Two atoms Two metal particles ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best material for making connecting wires? Nichrome Constant Manganin Copper Nichrome Constant Manganin Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Copper Lead Mercury Zinc Copper Lead Mercury Zinc ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The example of non-ohmic resistance is Copper wire Carbon resistance tungsten wire Aluminium wire Copper wire Carbon resistance tungsten wire Aluminium wire ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Conductors Inductors Semi-conductors Insulators Conductors Inductors Semi-conductors Insulators ANSWER DOWNLOAD EXAMIANS APP
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