Current Electricity Electrical current is due to the flow of Neutral particles only Negative charges only Positive charges only Both positive and negative charges Neutral particles only Negative charges only Positive charges only Both positive and negative charges ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are usually made from Nichrome Graphite Charcoal Silicon carbide Nichrome Graphite Charcoal Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Zinc Lead Copper Mercury Zinc Lead Copper Mercury 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 nearly 3 x 108 m/s the same as propagation velocity of electric energy of the order of a few ^.s/m independent of current strength nearly 3 x 108 m/s the same as propagation velocity of electric energy ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Circuits with low current densities High voltage circuits Vaccum tubes Carbon resistors Circuits with low current densities High voltage circuits Vaccum tubes Carbon resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Electrons and ions Electrons Nucleus Atoms Electrons and ions Electrons Nucleus Atoms ANSWER DOWNLOAD EXAMIANS APP