Current Electricity Ohm's law is not applicable to High voltage circuits Circuits with low current densities Carbon resistors Vaccum tubes High voltage circuits Circuits with low current densities Carbon resistors Vaccum tubes ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Varistors Thermistor Variable resistors Semiconductors Varistors Thermistor Variable resistors Semiconductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually A semiconductor An insulator A conductor None of the listed here A semiconductor An insulator A conductor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The example of non-ohmic resistance is Copper wire Carbon resistance Aluminium wire tungsten wire Copper wire Carbon resistance Aluminium wire tungsten wire ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 1 0.5 0.6 1.5 1 0.5 0.6 1.5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If an electric current is passed through a nerve, the man Begins to laugh Begins to weep Is excited Becomes insensitive to pain Begins to laugh Begins to weep Is excited Becomes insensitive to pain ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS