Current Electricity International ohm is defined in terms of the resistance of A column of mercury A cube of carbon A cube of copper The unit length of wire A column of mercury A cube of carbon A cube of copper The unit length of wire ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 50 V 200 V 150 V 100 V 50 V 200 V 150 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open The other two bulbs will light Rest of the two bulbs will not light All three bulbs will light There will be heavy current in the main line The other two bulbs will light Rest of the two bulbs will not light All three bulbs will light There will be heavy current in the main line ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The maximum current rating for a 10 kΩ, 0.5 W resistor is 14.14 mA 28.28 mA 0.707 mA 7.07 mA 14.14 mA 28.28 mA 0.707 mA 7.07 mA ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? Losses Input power True component of power kWh consumed Losses Input power True component of power kWh consumed 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 Zero Negative About 2 ohms per degree Positive Zero Negative About 2 ohms per degree Positive ANSWER DOWNLOAD EXAMIANS APP
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