Current Electricity If the efficiency of a machine is to be high, what should be low? Losses kWh consumed True component of power Input power Losses kWh consumed True component of power Input power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High specific resistance Low specific resistance Negligibly small temperature co-efficient of resistance High melting point High specific resistance Low specific resistance Negligibly small temperature co-efficient of resistance High melting point ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Zinc Copper Lead Mercury Zinc Copper Lead Mercury 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 There will be heavy current in the main line All three bulbs will light The other two bulbs will light Rest of the two bulbs will not light There will be heavy current in the main line All three bulbs will light ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 3 Q resistor having 2 A current will dissipate the power of 6 watts 2 watts 4 watts 8 watts 6 watts 2 watts 4 watts 8 watts ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A closed switch has a resistance of Zero About 50 ohms About 500 ohms Infinity Zero About 50 ohms About 500 ohms Infinity ANSWER DOWNLOAD EXAMIANS APP
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