Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is None of the listed here 0.3% 0.4% 0.2% None of the listed here 0.3% 0.4% 0.2% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An open resistor, when checked with an ohmmeter reads High but within tolerance Low but not zero Infinite Zero High but within tolerance Low but not zero Infinite Zero 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 About 2 ohms per degree Positive Zero Negative About 2 ohms per degree Positive Zero Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Carbon Cast iron Copper Tungsten Carbon Cast iron Copper Tungsten ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If an electric current is passed through a nerve, the man Becomes insensitive to pain Begins to weep Is excited Begins to laugh Becomes insensitive to pain Begins to weep Is excited Begins to laugh 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? 200 V 150 V 100 V 50 V 200 V 150 V 100 V 50 V ANSWER DOWNLOAD EXAMIANS APP
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