Current Electricity Which of the following is the best conductor of electricity? Copper Silver Gold Zinc Copper Silver Gold Zinc ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The filament of electrical bulb is made of Steel Tungsten Nickel Aluminium Steel Tungsten Nickel Aluminium 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 Current through supply line flows at slower speed Supply wiring is covered with insulation layer Supply wires are made of superior material Resistance of heater coil is more than the supply wires Current through supply line flows at slower speed Supply wiring is covered with insulation layer Supply wires are made of superior material ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is Negative Zero About 2 ohms per degree Positive Negative Zero About 2 ohms per degree Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Tungsten Cast iron Copper Carbon Tungsten Cast iron Copper Carbon ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load Increases Remains same None of these Decreases Increases Remains same None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
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