Current Electricity A rheostat differs from potentiometer in the respect that it Has higher wattage rating Offers large number of tapping Has lower wattage rating Has large number of turns Has higher wattage rating Offers large number of tapping Has lower wattage rating Has large number of turns ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Carbon Tungsten Cast iron Copper Carbon Tungsten Cast iron Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best conductor of electricity? Gold Copper Zinc Silver Gold Copper Zinc Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are usually made from Charcoal Graphite Nichrome Silicon carbide Charcoal Graphite Nichrome Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When current flows through heater coil it glows but supply wiring does not glow because 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 Supply wiring is covered with insulation layer Current through supply line flows at slower speed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has Low specific resistance Negligibly small temperature co-efficient of resistance High specific resistance High melting point Low specific resistance Negligibly small temperature co-efficient of resistance High specific resistance High melting point ANSWER DOWNLOAD EXAMIANS APP
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