Current Electricity Conductivity is the reciprocal of Resistivity Current density Resistance None of the listed here Resistivity Current density Resistance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A closed switch has a resistance of Infinity Zero About 50 ohms About 500 ohms Infinity Zero About 50 ohms About 500 ohms ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has lower wattage rating Offers large number of tapping Has higher wattage rating Has large number of turns Has lower wattage rating Offers large number of tapping Has higher wattage rating Has large number of turns ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One commercial unit of energy equals One watt-hour One watt-hour One kilowatt-hour Ten kilowatt-hour One watt-hour One watt-hour One kilowatt-hour Ten kilowatt-hour ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When current flows through heater coil it glows but supply wiring does not glow because Current through supply line flows at slower speed Supply wires are made of superior material Supply wiring is covered with insulation layer Resistance of heater coil is more than the supply wires Current through supply line flows at slower speed Supply wires are made of superior material Supply wiring is covered with insulation layer Resistance of heater coil is more than the supply wires 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 0.6 1.5 1 0.5 0.6 1.5 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
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