Current Electricity Current velocity through a copper conductor is the same as propagation velocity of electric energy nearly 3 x 108 m/s independent of current strength of the order of a few ^.s/m the same as propagation velocity of electric energy nearly 3 x 108 m/s independent of current strength of the order of a few ^.s/m 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. Semiconductors Varistors Variable resistors Thermistor Semiconductors Varistors Variable resistors Thermistor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Atoms Nucleus Electrons and ions Electrons Atoms Nucleus Electrons and ions Electrons ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Material Temperature Shape of cross-section Cross-sectional area Material Temperature Shape of cross-section Cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When current flows through heater coil it glows but supply wiring does not glow because Supply wiring is covered with insulation layer Current through supply line flows at slower speed Resistance of heater coil is more than the supply wires Supply wires are made of superior material Supply wiring is covered with insulation layer Current through supply line flows at slower speed Resistance of heater coil is more than the supply wires Supply wires are made of superior material ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All good conductors have high Reluctance Thermal conductivity Conductance Resistance Reluctance Thermal conductivity Conductance Resistance ANSWER DOWNLOAD EXAMIANS APP
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